Chorizanthe cuspidata |
Chorizanthe ventricosa |
|||||
---|---|---|---|---|---|---|
San Francisco spineflower |
potbellied spineflower, Priest Valley spineflower |
|||||
Habit | Plants decumbent to prostrate or ascending, 0.5–2(–2.5) × 0.5–10 dm, villous. | Plants spreading and diffuse, (0.5–)1–5 × 1–5(–7) dm, pubescent. | ||||
Leaves | basal; petiole (0.5–)1–3 cm; blade oblanceolate, (0.5–)1–5 × (0.3–)0.4–0.7(–1) cm, villous. |
basal; petiole 0.3–1(–1.5) cm; blade oblanceolate, (0.5–)1–3(–4) × (0.2–)0.4–1(–1.2) cm, thinly pubescent. |
||||
Inflorescences | rather dense with secondary branches suppressed, greenish to reddish; bracts 2, similar to proximal leaf blades only reduced, short-petiolate, becoming narrowly elliptic to linear-lanceolate and aciculate at distal nodes, acerose, 0.5–5 cm × 2–7 mm, awns 0.5–1.2 mm. |
with involucres in open clusters 2–6 cm diam., greenish or reddish; bracts 2–3 at proximal node, usually leaflike, often with whorl of sessile bracts about midstem, oblanceolate to elliptic, 0.5–1.5 cm × 1–4 mm, gradually becoming reduced, linear-lanceolate, 0.4–1.2(–1.5) cm × 1.5–5 mm, at distal nodes scalelike, linear and aciculate, acerose, awns straight, 1–3 mm. |
||||
Involucres | 1, greenish, cylindric, often ventricose basally, 1–3 mm, without scarious margins or if so then white to pink, thin, and restricted to basal portions of teeth, corrugate, villous abaxially; teeth spreading, equal, 0.5–2 mm; awns uncinate or straight with longer ones 2–3 mm and anterior one mostly 2.5–3 mm, these alternating with shorter 1–1.5(–1.7) mm ones. |
3–10+, greenish or reddish, urceolate, strongly ventricose basally, 4–4.5 mm, without scarious or membranous margins, corrugate, thinly pubescent; teeth spreading, unequal, 1–3 mm; awns straight or uncinate with longer anterior one straight, mostly 2 mm, others uncinate, 0.5–1 mm. |
||||
Flowers | included to slightly exserted; perianth bicolored with floral tube white and tepals white to rose, cylindric, 2–3 mm, pubescent abaxially; tepals connate less than 1/4 their length, monomorphic, oblong, truncate to 3-lobed and distinctly cuspidate apically; stamens 9, slightly exserted; filaments distinct, 2–3 mm, glabrous; anthers cream to rose, narrowly oblong, 0.3–0.4 mm. |
exserted; perianth bicolored with floral tube white to greenish yellow and tepals red to maroon, cylindric, 4–4.5 mm, sparsely pubescent; tepals connate 1/2 their length, dimorphic, oblong, those of outer whorl spreading and recurved, slightly longer than those of inner whorl, broadly obcordate, slightly erose or at least wavy and rounded apically, those of inner whorl erect, narrower, fimbriate and truncate or somewhat 2-lobed apically, erect; stamens 9, exserted; filaments distinct, 3.5–4 mm, glabrous; anthers pink to red or maroon, oblong, 1–1.3 mm. |
||||
Achenes | light brown, globose-lenticular, 2–3 mm. |
brown, globose-lenticular, 3–3.5 mm. |
||||
2n | = 40, 42, 44. |
|||||
Chorizanthe cuspidata |
Chorizanthe ventricosa |
|||||
Phenology | Flowering May–Sep. | |||||
Habitat | Serpentine outcrops, mixed grassland communities, oak-pine woodlands | |||||
Elevation | 500-1000 m (1600-3300 ft) | |||||
Distribution |
CA
|
CA |
||||
Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Chorizanthe ventricosa is restricted to isolated outcrops of serpentine in the coastal mountain ranges of southeastern Monterey County and southern San Benito County south in western Fresno County to the Parkfield Grade area and in Cottonwood Pass of San Luis Obispo County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||
Key |
|
|||||
Source | FNA vol. 5, p. 454. | FNA vol. 5, p. 458. | ||||
Parent taxa | Polygonaceae > subfam. Eriogonoideae > Chorizanthe > subg. Amphietes > sect. Ptelosepala | Polygonaceae > subfam. Eriogonoideae > Chorizanthe > subg. Amphietes > sect. Ptelosepala | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | C. pungens var. cuspidata | C. palmeri var. ventricosa | ||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 17: 379. (1882) | Goodman: Leafl. W. Bot. 2: 193, figs. 1, 2. (1939) | ||||
Web links |