Castilleja angustifolia |
Castilleja dissitiflora |
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narrow-leaf paintbrush, northwestern Indian paintbrush, northwestern paintbrush, violet desert paintbrush |
Mount Hamilton paintbrush, Mt. Hamilton Indian paintbrush |
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Habit | Herbs, perennial, 0.9–3.8(–4) dm; from a woody caudex; with a taproot. | Herbs, perennial, 1.8–4(–5) dm; from a woody caudex; with a taproot. | ||||||||
Stems | few to many, ascending to erect, branched, especially near base, sometimes unbranched, hairs sparse to dense, spreading to retrorse, long, sometimes short, soft to stiff, usually mixed with short-glandular ones, sometimes viscid. |
several to many, erect to ascending, unbranched, sometimes branched, hairs spreading, long, soft, mixed with shorter stipitate-glandular ones. |
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Leaves | brown or purplish, sometimes green, linear to lanceolate or broadly lanceolate, 1.2–7(–7.5) cm, not fleshy, margins plane, sometimes ± wavy, involute or flat, (0–)3–5-lobed, rarely with secondary lobes, apex acuminate to rounded; lobes spreading, oblong or lanceolate to linear-lanceolate, apex acute to rounded. |
green, linear to narrowly or broadly lanceolate, (1–)3–5(–6) cm, not fleshy, margins wavy (obscure on many pressed specimens), involute, usually 0–3(–5)-lobed, apex broadly acute to rounded; lobes widely spreading, linear to narrowly lanceolate, apex acute to acuminate. |
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Inflorescences | 2.5–20 × 1.5–5 cm; bracts proximally greenish or dull purplish, distally pink, magenta, pink-purple, reddish pink, pale yellow, pale yellow-orange, pale orange, or white, rarely reddish or orange-red, lanceolate to oblong, 3–5(–9)-lobed, sometimes with secondary lobes; lobes spreading or ascending, oblanceolate or linear, proximal lobes often much longer than distal, proximal lobes arising below or a little above mid length, apex acute to rounded. |
2.5–10 × 2–5.5 cm; bracts proximally greenish, distally red to red-orange, narrowly lanceolate to broadly lanceolate, 3–5-lobed; lobes spreading, distal, if present, ascending, linear or narrowly oblanceolate to triangular, proximals long, arising below mid blade, distals short, sometimes mere teeth, near apex of central lobe, sometimes wavy-margined, apex obtuse to rounded, sometimes acute. |
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Corollas | straight, 18–27(–32) mm; tube 8–17 mm; beak usually long-exserted, adaxially green or pink, 8–15 mm; abaxial lip deep green, reduced, inconspicuous, 1–2.5 mm, 5–20% as long as beak; teeth incurved to ascending, deep green, 0.5–1.5 mm. |
straight to slightly curved, 24–38 mm; tube 14–21 mm; beak exserted from calyx, adaxially green, 11–16.5(–18) mm; abaxial lip green, reduced, visible or not through deep front cleft in calyx, 2 mm, 13% as long as beak; teeth incurved, green, 1 mm. |
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Calyces | proximally green, yellow, brown, or purple, lobes colored as bract lobes, sometimes with a yellow band between proximal and distal parts, 13–25(–28) mm; abaxial clefts 3–8 mm, adaxial 5–9(–12) mm, clefts 30–50% of calyx length, deeper than laterals, lateral (1–)1.5–4(–5) mm, 10–25% of calyx length; lobes lanceolate to oblong, abaxials wider than adaxials, apex acute to rounded. |
whitish with green veins or green, sometimes purple, distally same color as bracts, sometimes with yellowish band below colored apices, 20–26(–29) mm; abaxial clefts (8–)13–16(–19) mm, adaxial 7–12(–14) mm, clefts 35–50% of calyx length, deeper than laterals, lateral 2–6(–8) mm, 10–30% of calyx length; lobes linear-lanceolate to lanceolate, apex obtuse to acute. |
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2n | = 48. |
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Castilleja angustifolia |
Castilleja dissitiflora |
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Phenology | Flowering Jun–Aug. | |||||||||
Habitat | Sagebrush slopes often rocky, montane to subalpine. | |||||||||
Elevation | 1900–3300 m. (6200–10800 ft.) | |||||||||
Distribution |
ID; MT; NV; OR; SD; UT; WY
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NV
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Discussion | Varieties 3 (3 in the flora). Much confusion exists concerning Castilleja angustifolia and the closely related C. chromosa. Sometimes C. chromosa is treated as a variety of C. angustifolia, using the name C. angustifolia var. dubia. The latter name is used here to represent a different assemblage of plants, not including C. chromosa. At other times, C. chromosa is synonymized completely under C. angustifolia. However, the two species are in most cases easily separable, and where they are sympatric there is little evidence of intergradation. Both C. angustifolia var. dubia and C. chromosa are accepted here. See additional comments under 3b. C. angustifolia var. dubia and 15. C. chromosa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja dissitiflora is endemic to several mountain ranges in central and eastern Nevada, in the upper montane and lower subalpine zones. It has the deep abaxial calyx cleft of C. linariifolia and the stipitate-glandular, wavy-margined leaves of C. applegatei var. pinetorum. Based on morphological data, Holmgren suggested that it is an allopolyploid derived from hybridization of C. applegatei var. pinetorum and C. linariifolia. His proposal is plausible and should be further tested. Castilleja dissitiflora is a tetraploid, while both putative parental species have at least some diploid populations. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 586. | FNA vol. 17, p. 603. | ||||||||
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Euchroma angustifolia | |||||||||
Name authority | (Nuttall) G. Don: Gen. Hist. 4: 616. 1837/1838 | N. H. Holmgren: Mem. New York Bot. Gard. 21(4): 46, figs. 6–8. (1971) | ||||||||
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