Castilleja miniata |
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common paintbrush, common red paintbrush, giant red Indian paintbrush, great red paintbrush, scarlet Indian paintbrush, scarlet or common or giant red paintbrush, scarlet paintbrush |
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Habit | Herbs, perennial, 1.2–8(–10) dm; from a woody caudex (or slender rooting rhizomes in var. dixonii, var. miniata); with a taproot or with slender, branched roots from a rhizome. | ||||||||||||
Stems | few to many, erect to ascending, rarely proximally decumbent or creeping and rooting at nodes, usually branched, glabrous, glabrate, or hairy, hairs spreading to ± retrorse, short to long, soft to stiff, rarely stipitate-glandular. |
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Leaves | green to purple, linear to lanceolate, narrowly elliptic, narrowly oblong, or ovate, (1.5–)3–8(–9.5) cm, thin and not fleshy or slightly to moderately thickened and slightly fleshy, margins plane, rarely wavy, flat to involute, whole leaf sometimes recurved downward, 0(–5)-lobed, apex acute to obtuse, sometimes rounded; lobes ascending-spreading, narrowly lanceolate, apex acute. |
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Inflorescences | 3–15(–22) × 1.5–5.5 cm, often bearing a thin, white, powdery exudate, especially on bract surfaces; bracts greenish, scarlet, red, red-orange, or pale orange throughout, sometimes pink, magenta, pink-purple, yellow, greenish yellow, white, or salmon throughout, or proximally greenish, distally colored as above, lanceolate to oblong-ovate, 0–5(–7)-lobed, central lobes sometimes distally apiculate; lobes erect, linear to lanceolate, oblong, or oblanceolate, short or medium length, arising near or above mid length, central lobe apex obtuse, rounded, or truncate, lateral ones rounded to acute or acuminate. |
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Pedicels | 0–5 mm. |
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Corollas | slightly curved, 20–48 mm; tube 12–26 mm; abaxial lip usually not exserted, though often visible in front calyx cleft, beak partially to fully exserted; beak adaxially green to yellow-green or whitish, (9–)14–25 mm; abaxial lip incurved or ascending, deep green or green, sometimes deep purple or yellowish, reduced, not inflated, visible in front cleft, 0.5–3.5 mm, 5–20% as long as beak (to ca. 33% as long as beak in some populations of var. miniata); teeth incurved or erect, green or white, 0.7–1.5 mm. |
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Calyces | colored as bracts, 15–38 mm; abaxial and adaxial clefts 4–24 mm, 35–70% of calyx length, deeper than laterals, lateral (1–)3–8(–12) mm, 5–30% of calyx length; lobes linear or narrowly lanceolate to narrowly triangular, apex acute to acuminate or obtuse. |
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2n | = 24, 48, 72, 96, 120, 144. |
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Castilleja miniata |
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Distribution |
AK; AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; MB; ON; SK; YT; nw Mexico
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Discussion | Varieties 4 (4 in the flora). Castilleja miniata is widely recognized as the common scarlet paintbrush. It is highly variable and has five levels of polyploidy. Nonetheless, it remains fairly well defined morphologically across its wide range. Native Americans use it medicinally. A probable hybrid with C. septentrionalis from southern Nevada was named C. ×porterae Cockerell. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 627. | ||||||||||||
Parent taxa | Orobanchaceae > Castilleja | ||||||||||||
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Subordinate taxa | |||||||||||||
Name authority | Douglas ex Hooker: Fl. Bor.-Amer. 2: 106. (1838) | ||||||||||||
Web links |
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