Difference between revisions of "Chorizanthe breweri"
Proc. Amer. Acad. Arts 12: 270. 1877.
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|common_names=Brewer’s spineflower | |common_names=Brewer’s spineflower | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
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name=Chorizanthe breweri | name=Chorizanthe breweri | ||
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|authority=S. Watson | |authority=S. Watson | ||
|rank=species | |rank=species | ||
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|publication title=Proc. Amer. Acad. Arts | |publication title=Proc. Amer. Acad. Arts | ||
|publication year=1877 | |publication year=1877 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_971.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Chorizanthe | |genus=Chorizanthe | ||
Latest revision as of 23:15, 5 November 2020
Plants ascending to decumbent, (0.3–)0.5–1.5(–2) × 1–5(–7) dm, thinly pubescent. Leaves basal; petiole 1–3 cm; blade spatulate to ovate, 0.5–2 × 0.3–1.2(–1.5) cm, thinly pubescent to densely tomentose at least abaxially. Inflorescences mostly flat-topped, open to rather densely branched, greenish to reddish; bracts persistent, 2, usually leaflike at proximal nodes and similar to leaf blades, short-petiolate, oblong to ovate, 0.3–0.8 cm × 2–6 mm, becoming sessile, reduced and scalelike at distal nodes, linear, acicular, often acerose, 0.1–0.5 cm × 0.5–1 mm, awns straight, 0.5–1 mm. Involucres in open clusters with 1 at node of dichotomies, reddish, cylindric, not ventricose, 2.5–3 mm, corrugate, without scarious or membranous margins, thinly pubescent with slender curly hairs; teeth spreading, unequal, 0.4–1.2 mm with 3 longer ones more erect than 3 shorter and less-prominent ones; awns uncinate, 0.3–0.6 mm. Flowers exserted; perianth white to rose or red, usually with white lobes, cylindric, 3–3.5 mm, pubescent; tepals connate ca. 1/2 their length, monomorphic to slightly dimorphic, narrowly oblong to obovate, rounded apically, those of outer whorl usually slightly broader and longer than those of inner whorl; stamens 9, mostly included; filaments distinct, 2.5–3 mm, glabrous; anthers pink to red, oblong, 0.4–0.5 mm. Achenes brown, lenticular, 2.5–3 mm. 2n = 38.
Phenology: Flowering Mar–Jul.
Habitat: Gravelly or rocky places, serpentine outcrops, mixed grassland and chaparral communities, pine-oak woodlands
Elevation: 60-800 m
Discussion
Of conservation concern.
Chorizanthe breweri is found infrequently in the Coast Ranges of southwestern California.
Selected References
None.