Castilleja tenuiflora |
Castilleja schizotricha |
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Catalina Indian paintbrush, Santa Catalina Indian paintbrush, Santa Catalina paintbrush |
split hair Indian paintbrush, split-hair paintbrush |
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Habit | Herbs, perennial, 0.8–1.5 dm; from a woody caudex; with a taproot. | |
Stems | few to many, ascending to erect, unbranched, hairs dense, appressed-ascending, matted, long, soft, branched, eglandular, ± white-woolly, obscuring surface. |
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Leaves | gray-green with hairs, surface green to purple, linear-lanceolate, 0.5–2 cm, not fleshy, margins plane, ± involute, 0(–3)-lobed, apex acute to acuminate, sometimes rounded; lobes sometimes divergent, spreading-ascending, narrowly linear, apex acute. |
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Inflorescences | 3–8 × 1–2 cm; bracts purple, lavender, pinkish, or dusty red throughout, sometimes greenish throughout or proximally greenish, distally colored as above, obscured by hairs, lanceolate, 3(–5)-lobed; lobes ascending to erect, linear to oblanceolate, short, arising near or above mid length, apex obtuse. |
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Corollas | straight, 15–20 mm; tube 8–9 mm; beak included to slightly exserted, adaxially purple or pink, 3.9–5 mm, densely puberulent with white, woolly hairs; abaxial lip deep purple, inconspicuous, pouched, pouches shallow, 3–5 mm, 80–100% as long as beak; teeth upright-ascending, reduced, appearing white, 1.5–2 mm. |
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Calyces | colored as bracts, 11–18 mm; abaxial and adaxial clefts 3.5–6 mm, 33–50% of calyx length, all 4 clefts subequal, lateral 4–6 mm, 33–50% of calyx length; lobes linear, apex acute. |
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Castilleja tenuiflora |
Castilleja schizotricha |
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Phenology | Flowering Jul–Aug. | |
Habitat | Meadows, ledges, rocky or gravelly slopes, subalpine to alpine, marble, granite, or serpentine substrates. | |
Elevation | 1600–2600 m. (5200–8500 ft.) | |
Distribution |
AZ; NM; Mexico
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CA; OR
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Discussion | Varieties 3 (1 in the flora). Castilleja tenuiflora is common and widespread across the mountains of Mexico, especially in pine-oak-madrone communities at middle elevations, as far south as Oaxaca, where it is found west and north of the Tehuantepec lowlands. There are two varieties of C. tenuiflora endemic to Mexico, while the typical variety crosses into the mountains of southeast Arizona and southwest New Mexico. Considerable local and regional variation exists in C. tenuiflora, but most of this appears to be racial in nature, and additional named varieties are likely not justified. While also commonly herbaceous, C. tenuiflora often forms large, multi-stemmed, subshrub plants with a woody base and ascending to strongly erect and often branched stems. It is valued in Mexican traditional medicine and is under study for potentially useful compounds (M. Jiménez et al. 1995; P. M. Sanchez et al. 2013). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja schizotricha is a rare species restricted to high elevations in the mountains in Siskiyou and Trinity counties in northwestern California and in Jackson and western Klamath counties in southwestern Oregon. See the discussion of 6. C. arachnoidea for morphological differences between it and C. schizotricha, as the two are sometimes confused. Though their ranges overlap, they do not appear to hybridize. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 659. | FNA vol. 17, p. 655. |
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | C. arachnoidea subsp. schizotricha | |
Name authority | Bentham: Pl. Hartw., 22. (1839) | Greenman: Bot. Gaz. 53: 511. (1912) |
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