Castilleja brevilobata |
Castilleja lassenensis |
|
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short-lobed paintbrush |
Lassen paintbrush, Mt. Lassen paintbrush |
|
Habit | Herbs, perennial, 1–5 dm; from a branched, woody caudex; with a taproot. | Herbs, perennial, 0.8–2.1 dm; from a woody caudex; with slender, branching roots. |
Stems | solitary or few, erect or ascending, unbranched, sometimes branched, hairs spreading, short, medium, and long, soft, short and medium ones short stipitate-glandular. |
few to many, decumbent-based to erect, unbranched except for short, leafy axillary shoots, hairs sparse, spreading, long, soft, mixed with short stipitate-glandular ones. |
Leaves | green or ± yellow, lanceolate, elliptic, or oblong to narrowly ovate, 1–2(–2.5) cm, not fleshy, margins plane or wavy, involute, (0–)3–5(–7)-lobed, apex rounded to acute; lobes ascending to erect, linear to lanceolate, apex rounded to acute. |
green to purple (sometimes different on stems of same plant), linear-lanceolate, 1–3.5 cm, not fleshy, margins plane, flat, 0(–3)-lobed, apex acute; lobes spreading-ascending, linear-lanceolate to lanceolate, apex acute. |
Inflorescences | 3–20 × 2–3.5 cm; bracts proximally greenish to dull brown, distally red, orange-red, or scarlet, sometimes orange or yellow, broadly lanceolate or oblong, (0–)3–5-lobed; lobes ascending, broadly to narrowly lanceolate, short, arising above mid length, apex acute, obtuse, or rounded. |
2–4.5 × 1.5–2 cm; bracts proximally greenish to dull brownish purple, distally pink to magenta or reddish purple, ovate, broadly lanceolate, or oblong, (0–)3–5-lobed; lobes ascending to erect, lanceolate, medium length, arising near or above mid length, apex acute to rounded. |
Corollas | straight, 15–24(–26) mm; tube 12–16 mm; beak exserted, abaxial lip equal to calyx; beak adaxially green or ± yellow-green, 7–10 mm, puberulent, stipitate-glandular; abaxial lip deep green, reduced, rounded, 1–2 mm, 10–25% as long as beak; teeth incurved to erect, light green, 0.5–1 mm. |
straight, 18–20 mm; tube 14–15 mm; abaxial lip sometimes partly exserted, beak usually exserted; beak adaxially white, 7–10 mm, margins white or pale salmon; abaxial lip pale green to yellow-green, inflated, pouches 3, shallow, central pouch shallowly grooved, visible through front cleft, 6–7 mm, 60–70% as long as beak; teeth erect, white, 1–2 mm. |
Calyces | green or whitish with green veins, lobes colored as bract lobes or paler, 14–30 mm; abaxial and adaxial clefts 5.5–8.5 mm, 30–40% of calyx length, deeper than laterals, lateral 1.5–4 mm, 20–25% of calyx length; lobes oblong to narrowly triangular, apex obtuse to rounded. |
proximally brown or dull magenta, sometimes green, distally colored as bracts, 11–19 mm; abaxial and adaxial clefts 9–10 mm, 55–60% of calyx length, deeper than laterals, lateral 2.5–5 mm, 15–25% of calyx length; lobes oblong, apex rounded. |
Stigmas | pale green. |
|
2n | = 24. |
= 24. |
Castilleja brevilobata |
Castilleja lassenensis |
|
Phenology | Flowering Mar–Aug. | Flowering Jul–Sep. |
Habitat | Dry savannas, rocky slopes and open conifer forests, on serpentine. | Moist to wet meadows, shorelines, subalpine, volcanic soils. |
Elevation | 200–1700 m. (700–5600 ft.) | 1500–2500 m. (4900–8200 ft.) |
Distribution |
CA; OR
|
CA |
Discussion | Castilleja brevilobata is endemic to dry serpentine openings in the Siskiyou Mountains of southwestern Oregon and adjacent California. Although sometimes treated as part of C. applegatei or C. hispida, its morphology does not suggest a close connection with either. This species occasionally hybridizes with C. pruinosa in Del Norte County, California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja lassenensis is restricted to the Mt. Lassen area in Shasta and Tehama counties. See the discussion of 55. C. lemmonii for information on the relationship between these two species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 591. | FNA vol. 17, p. 619. |
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja |
Sibling taxa | ||
Synonyms | C. hispida subsp. brevilobata | |
Name authority | Piper: Proc. Biol. Soc. Wash. 33: 104. (1920) | Eastwood: Leafl. W. Bot. 2: 244. (1940) |
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