Triphysaria versicolor |
Triphysaria versicolor subsp. versicolor |
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bearded false owl-clover, bearded owl-clover, dwarf owl-clover, smooth owl's-clover, smooth triphysaria, yellow owl's clover, yellow-beak owl's-clover |
bearded false owl-clover, bearded owl-clover, smooth triphysaria, yellow owl's clover, yellowbeak owl's-clover |
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Stems | simple or with 1–20 ascending branches, 5–60(–80) cm, glabrous proximally, sparsely pubescent distally. |
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Leaves | glabrous or sparsely pubescent; proximal cauline: blade linear, 3–30(–80) mm; cauline: blade ± ovate or obovate, 15–90 mm, base sessile, margins pinnatifid, rarely bipinnatifid, lateral lobes 3–9. |
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Pedicels | 1–2 mm, glabrous. |
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Flowers | calyx 5–11 mm, glabrous or sparsely puberulent, tube 4–8 mm, lobes narrowly triangular, 1.5–5 × 1–2 mm; corolla yellow, rarely yellow and white, or white, fading to rose pink, 12–25(–27) mm, densely short-hairy, beak ± yellow, white, or rose pink, not hooked, abaxial lobes spreading, 2–4 mm, throat abruptly indented, forming a fold under abaxial corolla lip, adaxial lobes projecting; stamens included, pollen sac yellow, 1.7–3 mm, glabrous, dehiscing longitudinally; style 10–20 mm, glabrous; stigma capitate. |
corolla white, fading to rose pink, beak white or rose pink. |
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Capsules | 6–9(–10) × 3.5–5 mm, glabrous. |
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Seeds | 15–60, ovoid, 0.6–1 mm. |
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Spikelike | racemes interrupted, dense distally, 2–30 cm; peduncle absent; bracts pinnatifid, ± ovate or obovate, 6–22 mm, lateral lobes 2–7. |
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2n | = 22. |
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Triphysaria versicolor |
Triphysaria versicolor subsp. versicolor |
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Phenology | Flowering Apr–Aug. | |||||
Habitat | Grasslands, vernally moist seeps to dry grassy meadows, headlands, rock outcrops, coastal prairies. | |||||
Elevation | 0–700 m. (0–2300 ft.) | |||||
Distribution |
CA; OR; BC
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CA; OR; BC |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies versicolor is critically imperiled in British Columbia, threatened by development pressure, habitat alteration, and competition from introduced species. The Canadian populations are over 400 km north of the nearest United States populations, in Oregon. This disjunction may be a result of the discontinuity of available habitat, introduction since glaciation, or survival of populations in glacial refugia (J. L. Penny and G. W. Douglas 1999). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 687. | FNA vol. 17, p. 687. | ||||
Parent taxa | Orobanchaceae > Triphysaria | Orobanchaceae > Triphysaria > Triphysaria versicolor | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Orthocarpus erianthus var. versicolor, O. versicolor | Orthocarpus faucibarbatus subsp. albidus | ||||
Name authority | Fischer & C. A. Meyer: Index Seminum (St. Petersburg) 2: 52. (1836) | unknown | ||||
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