Limnanthes douglasii
London Edinburgh Philos. Mag. & J. Sci. 3: 71. 1833.
Plants 3–35 (–100) cm. Stems erect or ascending. Leaves 3–7 (–25 cm); leaflets 5–13, blade linear, ovate, or wide-ovate, margins usually toothed or lobed, sometimes entire. Flowers cup, bell, or funnel-shaped; sepals narrowly lanceolate-ovate, lanceolate, or linear-lanceolate, 4–10 mm (glabrous or ciliate); petals white, yellow, or yellow with white-tips (sometimes greenish yellow basally), cuneate, obovate, spatulate, or obovate-spatulate, 7–18 mm, apex usually emarginate, sometimes truncate or obcordate; filaments 2–7 mm; anthers usually cream or yellow, sometimes dark-pink, orange-red, or nearly black, 0.8–1.5 mm; style 3–8 mm. Nutlets dark-brown, black, or gray, 2–5 mm, smooth, ridged, or tuberculate (at least apically), tubercles or ridges brown, pinkish, gray, or whitish, lamellar, planar, conical, rounded, or blunt.
Distribution
Calif., Oreg.
Discussion
Subspecies 5 (5 in the flora).
Limnanthes douglasii has five subspecies with core distributions as follows: subsp. sulphurea with two populations near the coast in Marin County and in southwestern San Mateo County; subsp. douglasii primarily coastal and Outer Coast Ranges with outlying populations in the northern Sierra Nevada foothills; subsp. nivea primarily Inner Coast Ranges and Bay Area with Central Valley and northern Sierra Nevada foothills populations; subsp. rosea in the Inner Coast Ranges, Central Valley, and Sierra Nevada foothills; and subsp. striata in the central Sierra Nevada foothills with outlying populations in Trinity County.
Selected References
None.
Lower Taxa
Key
| 1 | Flowers funnel-shaped; petals white with greenish yellow bases (veins usually dark); anthers usually cream, rarely dark. | Limnanthes douglasii subsp. striata |
| 1 | Flowers cup- or bell-shaped; petals yellow and/or white (veins rose, white, yellow, or purplish, not dark); anthers cream, yellow, dark pink, orange-red, reddish brown, or nearly black | > 2 |
| 2 | Petals yellow or yellow with white tips | > 3 |
| 2 | Petals white (sometimes aging or drying pale pink or yellowish) | > 4 |
| 3 | Petals yellow with white tips; anthers cream, yellow, or reddish brown. | Limnanthes douglasii subsp. douglasii |
| 3 | Petals yellow; anthers yellow. | Limnanthes douglasii subsp. sulphurea |
| 4 | Petals 7-13 mm (veins white or purplish); anthers cream to yellow; sepals 4-7 mm. | Limnanthes douglasii subsp. nivea |
| 4 | Petals 12-18 mm (veins rose); anthers cream, yellow, dark pink, orange-red, or nearly black; sepals 7-8 mm. | Limnanthes douglasii subsp. rosea |