Castilleja lutescens |
Castilleja scabrida |
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stiff yellow Indian paintbrush, stiff yellow paintbrush, yellow paintbrush, yellowish paintbrush |
rough Indian paintbrush, rough paintbrush |
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Habit | Herbs, perennial, 1.4–6 dm; from a woody caudex; with a taproot. | Herbs, perennial, 0.7–1.5(–2.2) dm; from a woody caudex; with a taproot or stout, branched roots. | ||||
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, decumbent, often sprawling, distally ascending, unbranched unless injured, rarely with small, leafy axillary shoots, hairs spreading, whitish, short, ± stiff, eglandular. |
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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. |
gray-green, sometimes green or reddish purple, reduced and scalelike on proximal 10–25% of stem, linear, lanceolate, or narrowly elliptic, 1.5–4(–5) cm, not fleshy, margins plane, flat or involute, 0–3(–5)-lobed, apex acute; lobes spreading or spreading-ascending, linear or lanceolate, apex acute. |
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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 × 2.5–5 cm; bracts proximally green to deep greenish purple, distally bright red, sometimes brick red or orange-red, linear to lanceolate, 3–5(–7)-lobed; lobes spreading, linear-lanceolate to lanceolate, sometimes expanded near tip, long, arising near base and more distally, apex acute to obtuse. |
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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, 25–40(–45) mm; tube 11–24 mm; beak exserted, adaxially green to yellow, 10–17(–20) mm; abaxial lip green, reduced, visible through front cleft, 1.5–2.5 mm, 10–15% as long as beak; teeth incurved, green, 0.5–1 mm. |
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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, 18–33 mm; abaxial clefts 6–12 mm, adaxial 8–15 mm, clefts 40–60% of calyx length, deeper than laterals, lateral 2–6 mm, 15–25% of calyx length; lobes lanceolate or narrowly triangular, apex acute to acuminate. |
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2n | = 48, 96. |
= 24. |
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Castilleja lutescens |
Castilleja scabrida |
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Phenology | Flowering May–Aug. | |||||
Habitat | Grasslands, open conifer forests, moist meadows, rocky slopes, valleys, montane. | |||||
Elevation | 600–1900 m. (2000–6200 ft.) | |||||
Distribution |
ID; MT; OR; WA; AB; BC
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AZ; CO; NM; NV; UT
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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.) |
Varieties 2 (2 in the flora). Castilleja scabrida consists of two varieties distinguished by range and habitat differences, as well as by the morphological characters of the key. Both varieties are often confused with the similar and broadly sympatric C. chromosa but can be differentiated from the latter most easily by the presence of scalelike vestigial leaves on the proximal stems of C. scabrida. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 624. | FNA vol. 17, p. 654. | ||||
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | C. pallida var. lutescens | |||||
Name authority | (Greenman) Rydberg: Mem. New York Bot. Gard. 1: 359. (1900) | Eastwood: Bull. Torrey Bot. Club 29: 523. (1902) — (as Castilleia) | ||||
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