Castilleja lutescens |
Castilleja genevieveana |
|
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stiff yellow Indian paintbrush, stiff yellow paintbrush, yellow paintbrush, yellowish paintbrush |
Genevieve's paintbrush |
|
Habit | Herbs, perennial, 1.4–6 dm; from a woody caudex; with a taproot. | Herbs, perennial, 1.5–4.5 dm; from a woody caudex; with a taproot. |
Stems | few to several, erect or ascending, sometimes decumbent at base, unbranched or branched, hairs spreading to retrorse, short, scabrid below inflorescence, sometimes becoming medium length to long, soft to stiff, mixed with short stipitate-glandular ones in inflorescence. |
several, erect or ascending, unbranched or often branched proximally, loosely lanate, hairs spreading to retrorse, flattened, often matted, long, soft, eglandular. |
Leaves | green, sometimes purplish, linear to lanceolate or narrowly oblong, 1–8.5 cm, not fleshy, margins plane, flat or involute lengthwise, 0(–5)-lobed, apex acute; lobes ascending, linear, central one sometimes shallowly toothed, apex acute to obtuse. |
green to gray-green, linear-lanceolate to narrowly oblong, 1.5–7.5 cm, not fleshy, margins plane, involute, 0(–3)-lobed, apex rounded; lobes spreading, linear or filiform, originating from distal 1/3 of blade, apex acute. |
Inflorescences | 3–14 × 1.5–3 cm; bracts greenish throughout, or proximally greenish, distally pale to bright yellow or whitish, rarely pale orangish, lanceolate to oblong, (0–)3–7-lobed; lobes ascending to erect, linear to lanceolate or narrowly oblong, medium length, arising at or above mid length, central lobe apex obtuse to rounded, lateral ones acute. |
2.5–10(–20 in fruit) × 1.5–2.5 cm; bracts proximally pale greenish to green, distally yellow, yellow-orange, or orange, ovate to broadly lanceolate or broadly oblanceolate-obovate, 0–3-lobed; lobes ascending to erect, narrowly lanceolate, medium length, arising near or above mid length, apex rounded to acute. |
Corollas | straight or slightly curved, 21–27 mm; tube 14–16 mm; beak partly exserted, adaxially green, 7–12 mm; abaxial lip ascending, green, reduced, 2–4 mm, 25–50% as long as beak; teeth erect or incurved, sometimes spreading, green or white, 0.7–2.5 mm. |
straight or slightly curved, 24–37 mm; tube 15–22 mm; slightly shorter than calyx or usually with beak, sometimes abaxial lip, exserted beyond calyx apices; beak adaxially green to yellowish, 7–15 mm; abaxial lip green or yellowish, reduced, ± inconspicuous, slightly pouched, 1.6–6 mm, less than 50% as long as beak; teeth spreading, yellow or yellow-green, 1–4 mm. |
Calyces | colored as bracts, 15–25 mm; abaxial and adaxial clefts 6–13 mm, 50% of calyx length, deeper than laterals, lateral 1–7 mm, 15% of calyx length; lobes narrowly triangular to linear, apex acute. |
colored as bracts, 23–27 mm; abaxial and adaxial clefts 10–15 mm, 33–50% of calyx length, deeper than laterals, lateral 4–9 mm, 15–33% of calyx length; lobes oblong to lanceolate or narrowly triangular, apex acute to rounded. |
2n | = 48, 96. |
|
Castilleja lutescens |
Castilleja genevieveana |
|
Phenology | Flowering May–Aug. | Flowering Mar–Jun. |
Habitat | Grasslands, open conifer forests, moist meadows, rocky slopes, valleys, montane. | Rocky slopes, open stands of juniper, over limestone. |
Elevation | 600–1900 m. (2000–6200 ft.) | 500–900 m. (1600–3000 ft.) |
Distribution |
ID; MT; OR; WA; AB; BC
|
TX; Mexico (Coahuila) |
Discussion | Castilleja lutescens is found east of the Cascade Range in Oregon and Washington and ranges east to western Montana and the adjacent interior of western Canada. Its inflorescences vary in color from entirely greenish to white or yellowish, and the stature of the plants is also variable, trending from moderate and compact in grasslands to taller in more forested situations. In the Blue Mountains of Garfield County, Washington, occasional hybrids form between C. lutescens and C. hispida var. acuta, which often both occur in the same vicinity. L. R. Heckard (1968) reported a chromosome count of ca. 2n = 120 from a population in Montana. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja genevieveana is known from eight counties in southwestern Texas and from a small area of adjacent Coahuila, Mexico. The species is likely related to the widespread C. integra and geographically replaces it. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 624. | FNA vol. 17, p. 609. |
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja |
Sibling taxa | ||
Synonyms | C. pallida var. lutescens | |
Name authority | (Greenman) Rydberg: Mem. New York Bot. Gard. 1: 359. (1900) | G. L. Nesom: Phytologia 72: 210. (1992) — (as genevievana) |
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