Castilleja peirsonii |
Castilleja pilosa |
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Peirson's paintbrush |
hairy paintbrush, parrot-head Indian paintbrush, pilose paintbrush |
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Habit | Herbs, perennial, 0.6–3(–4) dm; from a woody caudex; with a taproot. | Herbs, perennial, (0.7–)1.2–3.5(–4.4) dm; from a woody caudex; with a stout taproot. | ||||||||
Stems | few to several, erect or ascending, unbranched, sometimes branched, hairs dense distally, less so proximally, spreading, long, soft, eglandular, also mixed with short stipitate-glandular ones distally. |
several to many, ascending to erect, sometimes short-decumbent, branched or unbranched, sometimes with short, leafy axillary shoots, hairs moderately dense, retrorse or curved to spreading, straight, curly, or ± wavy, medium length to long, soft to stiff, eglandular. |
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Leaves | green to purple, narrowly to broadly lanceolate to oblong, (0.7–)1.5–4.2(–5) cm, not fleshy, margins plane, flat or involute, (0–)3(–5)-lobed, apex acuminate; lobes ascending-spreading, narrowly lanceolate to linear, apex acute. |
green to purple, linear to lanceolate, 1–5.5(–8) cm, not fleshy, margins plane to ± wavy, involute, 0–5(–7)-lobed, apex acuminate to obtuse; lobes widely spreading to ascending-spreading, linear to filiform, apex acute or obtuse. |
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Inflorescences | 2.5–7.5(–15) × 1.5–3 cm; bracts proximally greenish to dull reddish, distally bright red, orange, or pale orange, sometimes yellowish or dull red, broadly lanceolate to oblong, 3–5-lobed; lobes ascending, linear to lanceolate, ± long, arising above mid length, sometimes below mid length on proximal bracts, central lobe apex acute, rarely narrowly obtuse, lateral ones acute. |
(2–)3.5–16 × 1–3.5 cm; bracts light green, green, yellow-green, light purple, purple, light dusky pink, salmon, or reddish brown throughout, or these colors proximally, distally or on distal margins white, pale yellow, yellow, pale salmon, or buff, sometimes becoming reddish purple with age, lanceolate to broadly lanceolate or narrowly ovate, 3–5(–9)-lobed, often wavy-margined; lobes spreading to erect or ascending, linear to oblanceolate, short to long, arising near or above mid length, sometimes wavy-margined, central lobe apex obtuse to rounded or truncate, sometimes acute, lateral ones acute to obtuse. |
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Corollas | slightly curved, 15–28 mm; tube 13–15 mm; beak exserted, adaxially yellow or yellow-green, 7–8 mm; abaxial lip yellow or deep green, reduced, slightly inflated, pouched, protruding out abaxial cleft, 1–2.5 mm, 13–33% as long as beak; teeth erect or curved, yellow or green, 0.7–1 mm. |
straight, 14–23 mm; tube 10–15; abaxial lip sometimes partially exserted, beak exserted; beak adaxially green or yellow-green, 3–7 mm; abaxial lip proximally green, pale yellow, pale or bright pink, or deep purple, distally white to pink or purplish, inflated, pouches 3, deeply furrowed, 2.5–8 mm, 50–100% as long as beak; teeth erect, green, white, buff, pink, or pale yellow, 1–2 mm. |
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Calyces | proximally light green or yellow, distally yellow or colored as bracts, 12–20 mm; abaxial and adaxial clefts 5–9 mm, 40–50% of calyx length, deeper than laterals, lateral (1.5–)3–5.8 mm, 10–30% of calyx length; lobes oblong, apex acute to obtuse. |
proximally whitish to pale green, distally green, whitish, pink, or yellowish, 9–28 mm; all 4 clefts subequal, 2–12 mm, 45–55% of calyx length; lobes linear to narrowly lanceolate or narrowly triangular, rarely deltoid, apex acute, rarely rounded. |
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2n | = 24. |
= 24, 48, 96. |
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Castilleja peirsonii |
Castilleja pilosa |
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Phenology | Flowering Jun–Sep. | |||||||||
Habitat | Moist to wet meadows, stream banks, lakeshores, montane to alpine. | |||||||||
Elevation | 1700–3400 m. (5600–11200 ft.) | |||||||||
Distribution |
CA; NV
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CA; ID; MT; NV; OR; WY
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Discussion | Castilleja peirsonii is endemic to the higher elevations in the Sierra Nevada of California and in Tahoe Meadows in adjacent Washoe County, Nevada. Plants with yellow bracts in the southern portion of the range were named C. carterae. Castilleja peirsonii has shorter, wider corolla beaks than the related C. parviflora. In addition to the corolla shape differences, C. peirsonii also has red to yellow bracts and fairly bright yellow corollas, especially on the beaks, while C. parviflora has purple, pink, or white bracts and greenish corolla tubes and dorsal beak surfaces, with the beak margins pink, purple, or white. Reports from outside the Sierra Nevada in California and immediately adjacent Nevada are misidentifications. Castilleja peirsonii sometimes hybridizes with C. lemmonii in meadows where both species often occur in large numbers. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (3 in the flora). Castilleja pilosa is a widespread and variable complex similar in growth form and coloration to C. pallescens and related species. However, C. pilosa is distinguished with relative ease by its subequally divided calyces. Plants of the C. pallescens complex have very shallow lateral calyx lobes. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 644. | FNA vol. 17, p. 644. | ||||||||
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja | ||||||||
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Subordinate taxa | ||||||||||
Synonyms | C. carterae | Orthocarpus pilosus | ||||||||
Name authority | Eastwood: Leafl. W. Bot. 1: 175. (1935) — (as peirsoni) | (S. Watson) Rydberg: Mem. New York Bot. Gard. 1: 361. (1900) | ||||||||
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