Difference between revisions of "Oxytheca watsonii"
Proc. Amer. Acad. Arts 8: 191. 1870.
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|common_names=Watson’s puncturebract | |common_names=Watson’s puncturebract | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication title=Proc. Amer. Acad. Arts | |publication title=Proc. Amer. Acad. Arts | ||
|publication year=1870 | |publication year=1870 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_909.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Oxytheca | |genus=Oxytheca | ||
Latest revision as of 22:14, 5 November 2020
Plants erect to spreading, 0.5–2.5 × 0.4–4 dm. Stems glandular throughout. Leaf blades spatulate or obovate to oblanceolate, 0.7–4 × (0.1–)0.5–1.2 cm, strigose adaxially, less so abaxially, sparsely glandular on both surfaces. Inflorescences open to densely branched, 0.5–2 dm; bracts 1–5 × 0.5–3 mm, 3(–5) at first node and linear to ovate, otherwise distinct or basally connate and linear to triangular, ciliate and glandular; awns 1–3 mm. Peduncles deflexed, stout, 0.2–0.5 cm at proximal nodes, sometimes absent. Involucres 1.5–2 mm, typically glabrous, rarely with few scattered hairs abaxially; teeth 4; awns reddish, 2.5–3 mm. Flowers 2–4(–7); perianth white to pink, 1–1.5 mm, strigose and sparsely glandular abaxially; tepals dimorphic, entire, those of outer whorl oval to ovate and strigose abaxially, those of inner elliptic to oval or ovate and glabrous or sometimes pubescent adaxially at base; filaments 1–1.5 mm, glabrous; anthers cream to red, oval, 0.2 mm. Achenes dark brown to maroon, 1–1.5 mm. 2n = 40.
Phenology: Flowering Jun–Oct.
Habitat: Sandy flats and slopes, saltbush communities
Elevation: 1200-2000 m
Discussion
Oxytheca watsonii is an uncommon species known only from scattered locations. The name was misapplied in pre-1980 California floras to Acanthoscyphus parishii var. goodmaniana.
Selected References
None.