Penstemon eatonii: Difference between revisions
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==Range and habitat== |
==Range and habitat== |
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''Penstemon eatonii'' is native to the southwestern United States, largely in southern [[Great Basin]] and the [[Colorado River Basin]].<ref name="USDA">{{cite usda plants|symbol=PEEA |title=Penstemon eatonii |date=23 November 2024}}</ref> At its eastern edges it grows in the most western counties of Colorado from [[Mesa County, Colorado|Mesa County]] south to [[Four Corners]].<ref>{{cite book |last1=Ackerfield |first1=Jennifer |date=2015 |title=Flora of Colorado |language=en |edition=First |location=Fort Worth, Texas |publisher=Botanical Research Institute of Texas Press |page=591 |isbn=978-1-889878-45-4 |oclc=910162216}}</ref> It is only found occasionally in the farthest northwest corner of New Mexico.<ref name="Heflin" /> In Utah it is found from the [[Wasatch Mountains]] southward.<ref name="Cronquist et al" /> Its range extends through almost all of Arizona, but only in the southern part of Nevada with an isolated population in the north in [[Humboldt County, Nevada|Humboldt County]].<ref name="USDA" /> In the far west it reaches California grows in the Mojave Desert and the Sonoran Desert and reaches the [[San Bernardino Mountains]].<ref>{{Cite web |url=https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=36930 |title=''Penstemon eatonii'' |last1=Wetherwax |first1=Margriet |last2=Holmgren |first2=Noel H. |date=2012 |website=Jepson eFlora |publisher=University of California, Berkley |language=en |access-date=23 November 2024}}</ref> |
''Penstemon eatonii'' is native to the southwestern United States, largely in southern [[Great Basin]] and the [[Colorado River Basin]].<ref name="USDA">{{cite usda plants|symbol=PEEA |title=Penstemon eatonii |date=23 November 2024}}</ref> At its eastern edges it grows in the most western counties of Colorado from [[Mesa County, Colorado|Mesa County]] south to [[Four Corners]].<ref>{{cite book |last1=Ackerfield |first1=Jennifer |date=2015 |title=Flora of Colorado |language=en |edition=First |location=Fort Worth, Texas |publisher=Botanical Research Institute of Texas Press |page=591 |isbn=978-1-889878-45-4 |oclc=910162216}}</ref> It is only found occasionally in the farthest northwest corner of New Mexico.<ref name="Heflin" /> In Utah it is found from the [[Wasatch Mountains]] southward.<ref name="Cronquist et al" /> Its range extends through almost all of Arizona, but only in the southern part of Nevada with an isolated population in the north in [[Humboldt County, Nevada|Humboldt County]].<ref name="USDA" /> In the far west it reaches California grows in the Mojave Desert and the Sonoran Desert and reaches the [[San Bernardino Mountains]].<ref>{{Cite web |url=https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=36930 |title=''Penstemon eatonii'' |last1=Wetherwax |first1=Margriet |last2=Holmgren |first2=Noel H. |date=2012 |website=Jepson eFlora |publisher=University of California, Berkley |language=en |access-date=23 November 2024}}</ref> It also is reported in Wyoming and Idaho, but without specific locations.<ref name="USDA" /> |
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It grows in a wide variety of habitats including [[sagebrush steppe]]s, [[pinyon–juniper woodland]]s, [[mountain mahogany]] scrublands, and [[Ponderosa pine forest]]s. It does not display a strong preference for slopes compared with flat areas.<ref name="Cronquist et al" /> |
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===Conservation=== |
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The conservation non-profit [[NatureServe]] evaluated ''Penstemon eatonii'' in 1990 and at that time rated it as [[NatureServe conservation status|secure]] (G5).<ref name="NatureServe">{{Cite NatureServe |date=1 November 2024 |id=2.149632 |title=''Penstemon eatonii'' |access-date=23 November 2024}}</ref> |
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==Ecology== |
==Ecology== |
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Revision as of 03:50, 23 November 2024
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Plantaginaceae |
| Genus: | Penstemon |
| Species: | P. eatonii
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| Binomial name | |
| Penstemon eatonii | |
| Varieties[2] | |
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| Synonyms | |
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See list in Taxonomy | |
Penstemon eatonii is a species of flowering plant in the genus Penstemon, known by the common name firecracker penstemon. It is native to the Western United States from Southern California to the Rocky Mountains. It grows in many types of desert, woodland, forest, and open plateau habitat.
Description
Penstemon eatonii is a herbaceous plant with a few to several medium height stems that are between 30 and 100 centimeters (1.0 and 3.3 ft) when full grown.[3] The stems can grow straight upright or might grow out and then curve to growing upwards. Their texture might be hairless or covered in backwards facing stiff hairs, but is never waxy or glaucous.[4] It is relatively short lived perennial.[5]
Firecracker penstemon has both cauline and basal leaves, those that are attached to the stems and ones that grow directly from the base of the plant, which are very deep green and glossy.[6] The basal leaves and lowest ones on the stems are normally 5 to 10 centimeters (2 to 4 in) in length, but on occasion may be as long as 20 cm (8 in). Their width ranges from 1.5 to 5 cm (0.6 to 2.0 in), but usually do not exceed 2.8 cm (1.1 in).[4] The lower leaves are wider than ones further up the plant and are attached by petioles.[3] On the stems there are three to five pairs of leaves attached on opposite sides. The lower leaves are obovate to elliptic, teardrop shaped to having ellipse shaped sides with smooth edges. Upper leaves are ovate or lanceolate, egg shaped to spear head shaped, and attach directly to the stem, sometimes with the base clasping and the shoulders of the leaf extended to be heart shaped.[4]
The inflorescence is the upper 9 to 45 cm (3.5 to 17.5 in) of the stem. Each inflorescence has four to twelve groups of flowers with a pair of opposite bracts underneath where they attach. Each group has two cymes, branched parts of the inflorescence usually with one or two flowers, but occasionally as many as four.[4] The bright color of the flowers contrasts strikingly with the darker color of the foliage making this a very striking wildflower.[6] The brilliant color of the bloom is variously described as cardinal red,[3] scarlet,[6], or orange-red.[7] The length of the fused petals ranges from 24 to 33 millimeters (0.9 to 1.3 in). They are nearly radially symetrical, only weakly divided into two lips, with the lobes not spreading very much.[4]
Taxonomy
In 1871 Sereno Watson described a species that he named Penstemon centranthifolius, however George Bentham had already used his name for another species in 1835, so this was an illegitimate name.[2][8] The next year Asa Gray published his description of the species naming it Penstemon eatonii. It has three varieties[2]:
- Penstemon eatonii var. eatonii
- Penstemon eatonii var. exsertus (A.Nelson) C.C.Freeman
- Penstemon eatonii var. undosus M.E.Jones
It also has 7 synonyms of one of its three varieties.[9][10][11]
| Name | Year | Rank | Synonym of: | Notes |
|---|---|---|---|---|
| Penstemon amplus A.Nelson | 1938 | species | var. eatonii | = het. |
| Penstemon centranthifolius S.Watson | 1871 | species | var. eatonii | = het. nom. illeg. |
| Penstemon coccinatus Rydb. | 1909 | species | var. undosus | = het. |
| Penstemon eatonii subsp. exsertus (A.Nelson) D.D.Keck | 1939 | subspecies | var. exsertus | ≡ hom. |
| Penstemon eatonii subsp. undosus (M.E.Jones) D.D.Keck | 1939 | subspecies | var. undosus | ≡ hom. |
| Penstemon exsertus A.Nelson | 1931 | species | var. exsertus | ≡ hom. |
| Penstemon munzii I.M.Johnst. | 1922 | species | var. undosus | = het. |
| Notes: ≡ homotypic synonym ; = heterotypic synonym | ||||
Names
The species name was selected to honor Daniel Cady Eaton, a botanist who worked at Yale University.[3] In English it is most commonly called the firecracker penstemon.[6] Related to its scientific name it is also known as Eaton's penstemon, Eaton penstemon, and Eaton's firecracker.[12][5]
Range and habitat
Penstemon eatonii is native to the southwestern United States, largely in southern Great Basin and the Colorado River Basin.[13] At its eastern edges it grows in the most western counties of Colorado from Mesa County south to Four Corners.[14] It is only found occasionally in the farthest northwest corner of New Mexico.[6] In Utah it is found from the Wasatch Mountains southward.[5] Its range extends through almost all of Arizona, but only in the southern part of Nevada with an isolated population in the north in Humboldt County.[13] In the far west it reaches California grows in the Mojave Desert and the Sonoran Desert and reaches the San Bernardino Mountains.[15] It also is reported in Wyoming and Idaho, but without specific locations.[13]
It grows in a wide variety of habitats including sagebrush steppes, pinyon–juniper woodlands, mountain mahogany scrublands, and Ponderosa pine forests. It does not display a strong preference for slopes compared with flat areas.[5]
Conservation
The conservation non-profit NatureServe evaluated Penstemon eatonii in 1990 and at that time rated it as secure (G5).[1]
Ecology
Unlike penstemons that are adapted to pollination by bees, the firecracker penstemon has a much longer and narrow floral tube and lacks the wide lobes at the flower's mouth for insects to use as landing platform. Instead it is visited by hummingbirds.[16]
See also
References
- ^ a b NatureServe (1 November 2024). "Penstemon eatonii". NatureServe Explorer. Arlington, Virginia. Retrieved 23 November 2024.
- ^ a b c "Penstemon eatonii A.Gray". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 November 2024.
- ^ a b c d Heil, Kenneth D.; O'Kane, Jr., Steve L.; Reeves, Linda Mary; Clifford, Arnold (2013). Flora of the Four Corners Region: Vascular Plants of the San Juan River Drainage, Arizona, Colorado, New Mexico, and Utah (First ed.). St. Louis, Missouri: Missouri Botanical Garden. p. 720. ISBN 978-1-930723-84-9. ISSN 0161-1542. LCCN 2012949654. OCLC 859541992. Retrieved 22 November 2024.
- ^ a b c d e Freeman, Craig C. (29 July 2020) [2019]. "Penstemon eatonii". Flora of North America. p. 148. ISBN 978-0190868512. OCLC 1101573420. Archived from the original on 22 November 2024. Retrieved 22 November 2024.
- ^ a b c d Cronquist, Arthur; Holmgren, Arthur H.; Holmgren, Noel H.; Reveal, James L.; Holmgren, Patricia K. Intermountain Flora : Vascular Plants of the Intermountain West, U.S.A.. Vol. 4. Subclass Asteridae (except Asteraceae) (First ed.). Bronx, New York: New York Botanical Garden. pp. 445–446. ISBN 978-0-231-04120-1. OCLC 320442. Retrieved 21 November 2024.
- ^ a b c d e Heflin, Jean (1997). Penstemons : The Beautiful Beardtongues of New Mexico. Albuquerque, New Mexico: Jackrabbit Press. p. 18. ISBN 978-0-9659693-0-7. LCCN 98111240. OCLC 39050925. Retrieved 22 November 2024.
- ^ Roberts, Rhoda N.; Nelson, Ruth Ashton (1967). Mountain Wild Flowers of Colorado and Adjacent Areas. Museum Pictoral No. 13. Denver, Colorado: Denver Museum of Natural History. p. 41. OCLC 7034805. Retrieved 22 November 2024.
- ^ "Penstemon centranthifolius (Benth.) Benth". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 November 2024.
- ^ "Penstemon eatonii var. eatonii". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 November 2024.
- ^ "Penstemon eatonii var. exsertus (A.Nelson) C.C.Freeman". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 November 2024.
- ^ "Penstemon eatonii var. undosus M.E.Jones". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 November 2024.
- ^ Quattrocchi, Umberto (2012). CRC World Dictionary of Medicinal and Poisonous Plants. Boca Raton, Florida: CRC Press, Taylor & Francis Group. p. 2832. ISBN 978-1-4200-8044-5. OCLC 971529928.
- ^ a b c NRCS (23 November 2024), "Penstemon eatonii", PLANTS Database, United States Department of Agriculture (USDA)
- ^ Ackerfield, Jennifer (2015). Flora of Colorado (First ed.). Fort Worth, Texas: Botanical Research Institute of Texas Press. p. 591. ISBN 978-1-889878-45-4. OCLC 910162216.
- ^ Wetherwax, Margriet; Holmgren, Noel H. (2012). "Penstemon eatonii". Jepson eFlora. University of California, Berkley. Retrieved 23 November 2024.
- ^ Taylor, Ronald J. (1992). Sagebrush Country : A Wildflower Sanctuary (Revised ed.). Missoula, Montana: Mountain Press Publishing Company. p. 54. ISBN 978-0-87842-280-7. OCLC 25708726. Retrieved 21 November 2024.
External links
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