Castilleja campestris |
Castilleja lassenensis |
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field owl's-clover, meadow paintbrush, vernal pool Indian paintbrush, yellow owl's clover |
Lassen paintbrush, Mt. Lassen paintbrush |
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Habit | Herbs, annual, (0.3–)0.9–3 dm; with fibrous roots. | Herbs, perennial, 0.8–2.1 dm; from a woody caudex; with slender, branching roots. | ||||
Stems | solitary or few, erect, unbranched, sometimes branched, glabrous or hairs sparse proximally, spreading, long, soft distally. |
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. |
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Leaves | green, sometimes purple-tinged, linear to narrowly lanceolate, (0.4–)1–4 cm, not fleshy, thin and flexible or thick and ± brittle, margins plane, involute, 0-lobed, apex acuminate. |
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. |
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Inflorescences | 2–15 × 2–3 cm; bracts green throughout, sometimes purplish tinged, linear to narrowly lanceolate, 0-lobed, apex acute. |
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. |
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Corollas | straight, 11–26 mm; tube 10–22 mm; abaxial lip, beak, and part of tube exserted from calyx; beak adaxially white or yellow, 3–6 mm; abaxial lip yellow, sometimes orange, paler near teeth, prominent, deeply saccate with 3 lobes at ca. 90° from one another, pouches 6–10 mm wide, 3–4 mm deep, abruptly widening from tube, sacs ± round or ± rounded-triangular from above, villous within at base of teeth, 4–5 mm (2–4 mm from sinus), 70–90% as long as beak, puberulent; teeth erect, white, sometimes with deeply colored bases, 0.5–2 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. |
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Calyces | proximally green, pale, or purplish, distally purple or green, 5.5–11 mm; abaxial and adaxial clefts 2–5 mm, 30–50% of calyx length, deeper than laterals, lateral 1.5–2.5 mm, 25–30% of calyx length; lobes linear-lanceolate to narrowly triangular, apex acute to acuminate. |
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. |
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Stigmas | pale green. |
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2n | = 24. |
= 24. |
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Castilleja campestris |
Castilleja lassenensis |
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Phenology | Flowering Jul–Sep. | |||||
Habitat | Moist to wet meadows, shorelines, subalpine, volcanic soils. | |||||
Elevation | 1500–2500 m. (4900–8200 ft.) | |||||
Distribution |
CA; OR
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CA |
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Discussion | Varieties 2 (2 in the flora). Castilleja campestris is sometimes confused with Triphysaria eriantha subsp. eriantha, but C. campestris has two-celled anthers and entire leaves, while T. eriantha has one pollen sac per stamen and strongly divided leaves. (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.) |
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Key |
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Source | FNA vol. 17, p. 592. | FNA vol. 17, p. 619. | ||||
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Orthocarpus campestris | |||||
Name authority | (Bentham) T. I. Chuang & Heckard: Syst. Bot. 16: 656. (1991) | Eastwood: Leafl. W. Bot. 2: 244. (1940) | ||||
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