Castilleja xanthotricha |
Castilleja nervata |
|
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John Day or yellow-hairy paintbrush, John Day paintbrush, yellow hair paintbrush, yellow-hair Indian paintbrush |
trans-Pecos Indian paintbrush |
|
Habit | Herbs, perennial, 1–2(–3.8) dm; from a woody caudex; with a taproot. | Herbs or subshrubs, perennial, 3–6(–10) dm; from a woody caudex; with a taproot. |
Stems | few to several, ± decumbent to erect or ascending, unbranched, sometimes with short, leafy axillary shoots, hairs erect to spreading, long, soft, eglandular, mixed with short stipitate-glandular ones. |
solitary or few, ascending to erect, straight, unbranched or branched, hairs dense, spreading, long, stiff, eglandular, mixed with deflexed, short stipitate-glandular ones. |
Leaves | green, linear, lanceolate to broadly lanceolate, oblong, or cuneate, 0.8–5 cm, not fleshy, margins plane to wavy, involute, 0–5-lobed, apex acute, sometimes rounded; lobes spreading, linear, arising below mid length, nearly as broad as center lobe, apex acute. |
green to purple-tinged, linear-lanceolate to broadly lanceolate or oblanceolate, 1.5–8 cm, not fleshy, margins plane, involute, 0-lobed, apex rounded to acute. |
Inflorescences | 3–14 × 1.5–4.5 cm; bracts proximally greenish, rarely dull reddish purple, distally white to cream, rarely pale yellow or dull, pale pink (sharply differentiated from proximal coloration), lanceolate or oblong to narrowly ovate, (3–)5–7-lobed; lobes ascending, linear to obovate, ± broadened distally, medium, long, proximal lobes arising below mid length, central lobe apex broadly rounded to truncate, others acute to rounded. |
3–16 × 2–4.5 cm; bracts proximally green to deep purple, distally red to red-orange or orange, sometimes with a pale medial band, lanceolate to oblanceolate to ovate or obovate, 0(–3)-lobed; lobes when present upright, ± triangular, short, arising from distal portion, apex obtuse to rounded or truncate. |
Corollas | curved, 17–23 mm; tube 15–19 mm; beak exserted, adaxially green, 5–8(–9) mm, puberulent, stipitate-glandular; abaxial lip deep purple (color sometimes visible through calyx), green, pinkish, or pale yellow, ± prominent, slightly inflated, usually hidden in calyx, sometimes right at top of calyx, 2 mm, ca. 50% as long as beak; teeth ascending, whitish, yellowish, pink, or green, 1–1.5 mm. |
straight, 15–24 mm; tube 11–13 mm; subequal to calyx or tip slightly exserted; beak adaxially whitish to pinkish, 5–11 mm; abaxial lip pale to deep green, reduced, 1–2 mm, 10–20% as long as beak; teeth incurved, green, 1–2.5 mm. |
Calyces | colored as bracts, 15–26 mm; abaxial and adaxial clefts 3.5–7 mm, 25–50% of calyx length, deeper than laterals, lateral 2–5 mm, 12–25% of calyx length; lobes linear, oblong, or narrowly triangular, center lobe apex usually rounded, lobes acute to rounded. |
proximally light green, distally deep green, deep purple, or blackish, 15–24 mm; abaxial and adaxial clefts 5–9 mm, 25–45% of calyx length, deeper than laterals, lateral 0–0.5 mm, 0–3% of calyx length; lobes oblong, sometimes emarginate, apex obtuse, rounded, or obliquely truncate. |
2n | = 48. |
= 24, 48. |
Castilleja xanthotricha |
Castilleja nervata |
|
Phenology | Flowering Apr–Jul. | Flowering Aug–Sep. |
Habitat | Arid, rocky, sandy, or clay slopes of basaltic origin, sagebrush steppes. | Dry south-facing rocky slopes with scattered bunchgrasses and oaks, cliff bases, mesa tops, open pine-oak woodlands, rocky savannas. |
Elevation | 400–800 m. (1300–2600 ft.) | 1800–2400 m. (5900–7900 ft.) |
Distribution |
OR
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AZ; Mexico (Aguascalientes, Chihuahua, Colima, Durango, Guerrero, Jalisco, México, Michoacán, Morelos, Nayarit, Oaxaca, Puebla, Sonora, Veracruz)
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Discussion | Castilleja xanthotricha is endemic to moderate elevations in the sagebrush hills of the John Day River drainage in north-central Oregon. N. H. Holmgren (1971) hypothesized that this tetraploid species is of allopolyploid hybrid origin between C. glandulifera and C. oresbia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja nervata is a common and widespread Mexican species, from northern Chihuahua and Sonora south to central Oaxaca. It has medicinal value to indigenous peoples of the Sierra Madre. In the flora area, C. nervata is known from a single, presumably extant population in the Chiricahua Mountains in Cochise County, though there are historical records from the Rincon and Santa Rita mountains. The sole recently verified population is on private property and is endangered. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 665. | FNA vol. 17, p. 634. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. cruenta | |
Name authority | Pennell: Notul. Nat. Acad. Nat. Sci. Philadelphia 74: 5. (1941) | Eastwood: Proc. Amer. Acad. Arts 44: 574. (1909) |
Web links |