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{{Short description|Genus of flowering plants}}
{{Automatic taxobox
{{Automatic taxobox
| image = Adenostoma fasciculatum.jpg
| image = Adenostomafasciculatum.jpg
| image_caption = ''Adenostoma fasciculatum''
| image_caption = ''[[Adenostoma fasciculatum]]'' in flower
| display_parents = 2
| display_parents = 2
| taxon = Adenostoma
| taxon = Adenostoma
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}}
}}


'''''Adenostoma''''' is a genus of shrubs containing only two species:
'''''Adenostoma''''' is a genus of shrubs in the rose family ([[Rosaceae]]) containing only two species, chamise (''[[Adenostoma fasciculatum]]'') and redshanks (''[[Adenostoma sparsifolium]]''). Both are native to the [[The Californias|Californias]].
*''[[Adenostoma fasciculatum]]'' — [[Chamise]]
*''[[Adenostoma sparsifolium]]'' — Red shank.


== Description ==
⚫
Both species are native to coastal [[California]] and [[Baja California]]. ''Adenostoma fasciculatum'' is also native to California in the [[Sierra Nevada (U.S.)|Sierra Nevada]].<ref name=Jepson1993>[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?6677,6681,6683 Jepson Manual, University of California, 1993; ''Adenostoma'']</ref> They are found in plant communities and sub-ecoregions of the [[California chaparral and woodlands]] ecoregion.


=== Characteristics ===
Both species in this genus feature stiff, linear leaves arranged alternately or in clusters along stems with shredding bark. Flowers form on a [[panicle]], are cream to white and, as in all members of the [[Rosaceae|rose family]], have [[hypanthium|hypanthia]].<ref name=Jepson1993 />
The plants grow in a habit of shrubs to small trees, and the stem is more or less resinous.<ref name=":2">{{Cite web|last=Jones|first=William|date=2012|title=Adenostoma|url=https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=10043|url-status=live|access-date=18 December 2021|website=Jepson eFlora|publisher=Jepson Flora Project (eds.)|archive-url=https://web.archive.org/web/20151218210526/http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=10043 |archive-date=2015-12-18 }}</ref> Both species in this genus feature stiff, linear leaves arranged alternately or in clusters along stems with shredding bark. Flowers form on a [[panicle]], are cream to white and, as in all members of the [[Rosaceae|rose family]], have [[hypanthium|hypanthia]].<ref name="Jepson1993" /> The fruit is an achene. Chromosome number is 2n = 18.<ref name=":2"/>

=== Distribution and habitat ===
⚫
Both species are native to coastal [[California]] and [[Baja California]]. ''Adenostoma fasciculatum'' is also native to California in the [[Sierra Nevada (U.S.)|Sierra Nevada]].<ref name="Jepson1993">[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?6677,6681,6683 Jepson Manual, University of California, 1993; ''Adenostoma'']</ref> They are found in plant communities and sub-ecoregions of the [[California chaparral and woodlands]] ecoregion.

== Taxonomy ==
<gallery widths="225" heights="225" perrow="2" caption="Species of ''Adenostoma''">
File:Chamise resprout Mag Road III.jpg|''[[Adenostoma fasciculatum]]'' <small>[[William Jackson Hooker|Hook.]] & [[George Arnott Walker-Arnott|Arn.]]</small> - Chamise
File:Redshanks imported from iNaturalist photo 50466530 on 18 December 2021.jpg|''[[Adenostoma sparsifolium]]'' [[John Torrey|<small>Torr.</small>]] - Redshanks
</gallery>Phylogenetic analysis places ''Adenostoma'' closest to ''[[Chamaebatiaria]]'' and ''[[Sorbaria]]'', and suggests tentative placement in the subfamily [[Spiraeoideae]], tribe [[Sorbarieae]].<ref name=":4">{{Cite web|last=Montalvo|first=A.M.|last2=Riordan|first2=E.C.|last3=Beyers|first3=Jan|date=2017|title=Plant profile for Adenostoma fasciculatum|url=https://www.fs.fed.us/psw/publications/beyers/psw_2018_beyers003_montalvo_adenostoma-fasciculatum.pdf|url-status=live|access-date=15 October 2021|website=Treesearch|publisher=United States Department of Agriculture|archive-url=https://web.archive.org/web/20200319074058/https://www.fs.fed.us/psw/publications/beyers/psw_2018_beyers003_montalvo_adenostoma-fasciculatum.pdf |archive-date=2020-03-19 }}</ref> The name ''Adenostoma'' comes from Greek, meaning "glandular mouth," referring to the hypanthium ring gland.<ref name=":2" />


==References==
==References==
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{{Taxonbar|from=Q4682292}}
{{Taxonbar|from=Q4682292}}
{{Authority control}}


[[Category:Adenostoma| ]]
[[Category:Adenostoma| ]]
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[[Category:Flora of Baja California]]
[[Category:Flora of Baja California]]
[[Category:Natural history of the California chaparral and woodlands]]
[[Category:Natural history of the California chaparral and woodlands]]
[[Category:Flora without expected TNC conservation status]]




Latest revision as of 18:40, 3 January 2025

Adenostoma
Adenostoma fasciculatum in flower
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Subfamily: Amygdaloideae
Tribe: Sorbarieae
Genus: Adenostoma
Hook. & Arn.

Adenostoma is a genus of shrubs in the rose family (Rosaceae) containing only two species, chamise (Adenostoma fasciculatum) and redshanks (Adenostoma sparsifolium). Both are native to the Californias.

Description

[edit]

Characteristics

[edit]

The plants grow in a habit of shrubs to small trees, and the stem is more or less resinous.[1] Both species in this genus feature stiff, linear leaves arranged alternately or in clusters along stems with shredding bark. Flowers form on a panicle, are cream to white and, as in all members of the rose family, have hypanthia.[2] The fruit is an achene. Chromosome number is 2n = 18.[1]

Distribution and habitat

[edit]

Both species are native to coastal California and Baja California. Adenostoma fasciculatum is also native to California in the Sierra Nevada.[2] They are found in plant communities and sub-ecoregions of the California chaparral and woodlands ecoregion.

Taxonomy

[edit]

Phylogenetic analysis places Adenostoma closest to Chamaebatiaria and Sorbaria, and suggests tentative placement in the subfamily Spiraeoideae, tribe Sorbarieae.[3] The name Adenostoma comes from Greek, meaning "glandular mouth," referring to the hypanthium ring gland.[1]

References

[edit]
  1. ^ a b c Jones, William (2012). "Adenostoma". Jepson eFlora. Jepson Flora Project (eds.). Archived from the original on 2015-12-18. Retrieved 18 December 2021.
  2. ^ a b Jepson Manual, University of California, 1993; Adenostoma
  3. ^ Montalvo, A.M.; Riordan, E.C.; Beyers, Jan (2017). "Plant profile for Adenostoma fasciculatum" (PDF). Treesearch. United States Department of Agriculture. Archived (PDF) from the original on 2020-03-19. Retrieved 15 October 2021.
[edit]
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