Chorizanthe ventricosa |
Chorizanthe corrugata |
|
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potbellied spineflower, Priest Valley spineflower |
wrinkled spineflower |
|
Habit | Plants spreading and diffuse, (0.5–)1–5 × 1–5(–7) dm, pubescent. | Plants erect, 0.3–1.5 × 0.3–1 dm, thinly tomentose. |
Leaves | 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. |
basal or nearly so; petiole 0.5–2(–3) cm; blade round-ovate, (0.5–)0.8–1.5(–2) × (0.3–)0.5–1.5(–2) cm, thinly floccose to tomentose. |
Inflorescences | 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. |
with involucres in small clusters 0.5–1 cm diam., green to tan or reddish; bracts 2, linear to linear-lanceolate, acicular, 2–7 cm × 1–2.5 mm, awns slightly curved, 0.5–1 mm. |
Involucres | 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. |
1, green to tan, cylindric, 3-angled but 3-ribbed, 3–4 mm, markedly transverse corrugate, glabrate; teeth 3, equal, 2–4.5 mm; awns uncinate, 0.6–1 mm. |
Flowers | 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. |
1, included to slightly exserted; perianth white, cylindric, 2–2.5 mm, thinly pubescent abaxially; tepals connate ca. 2/3 their length, monomorphic, oblong, acute, entire apically; stamens 6, slightly exserted; filaments distinct, 0.8–1 mm, glabrous; anthers cream, ovate, 0.4–0.5 mm. |
Achenes | brown, globose-lenticular, 3–3.5 mm. |
brown, lenticular, 2.5–3 mm. |
2n | = 40, 42, 44. |
= 38. |
Chorizanthe ventricosa |
Chorizanthe corrugata |
|
Phenology | Flowering May–Sep. | Flowering Feb–May. |
Habitat | Serpentine outcrops, mixed grassland communities, oak-pine woodlands | Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, and sagebrush communities |
Elevation | 500-1000 m (1600-3300 ft) | -70-1000 m (-200-3300 ft) |
Distribution |
CA |
AZ; CA; NV; Mexico (Baja California, Sonora)
|
Discussion | 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.) |
Chorizanthe corrugata is found mainly in the Mojave and Sonoran deserts. The narrow, transversely corrugated involucral tube is diagnostic. Some anomalous flowers with four or eight stamens have been seen but this condition was always associated with other flowers bearing the normal number. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 5, p. 458. | FNA vol. 5, p. 468. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. palmeri var. ventricosa | Acanthogonum corrugatum |
Name authority | Goodman: Leafl. W. Bot. 2: 193, figs. 1, 2. (1939) | (Torrey) Torrey & A. Gray: Proc. Amer. Acad. Arts 8: 198. (1870) |
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