Difference between revisions of "Gutierrezia pomariensis"
Great Basin Naturalist 43: 288. 1983.
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|common_names=Orchard snakeweed | |common_names=Orchard snakeweed | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Gutierrezia sarothrae var. pomariensis | |name=Gutierrezia sarothrae var. pomariensis | ||
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|publication title=Great Basin Naturalist | |publication title=Great Basin Naturalist | ||
|publication year=1983 | |publication year=1983 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_180.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Gutierrezia | |genus=Gutierrezia | ||
Latest revision as of 21:01, 5 November 2020
Subshrubs, 20–50 cm. Stems sparsely scabrous or glandular-scabrous to glabrate. Leaves: basal absent at flowering; cauline blades 1-nerved, linear, 0.5–2.5 mm wide, slightly reduced distally. Heads borne singly or in pairs on bracteate peduncles, or some almost sessile, in loose arrays. Involucres cylindro-turbinate to turbinate-campanulate, 3–5 mm diam. Phyllary apices (green, broadly rounded), thickened, (prominently gland-dotted). Ray florets (4–)5–7(–8); corollas yellow, 2–5 mm. Disc florets 5–15. Cypselae 1–2 mm, faces without oil cavities, loosely strigose; pappi of 1–2 series of oblong-lanceolate scales 1–2 mm. 2n = 32.
Phenology: Flowering Jul–Sep.
Habitat: Dry, open, rocky sites, mixed desert shrub communities
Elevation: 1400–2200 m
Discussion
Gutierrezia pomariensis is similar to G. sarothrae and sympatric with it; the two are ecologically distinct, with G. pomariensis occupying drier habitats. “Intermediates in a populational sense are few and apparently confined to the ecotone in places where the two taxa grow nearby” (A. Cronquist 1994).
Selected References
None.