Erythranthe linearifolia |
|
---|---|
primrose monkeyflower, threadleaf primrose monkeyflower |
|
Habit | Perennials, rhizomatous, densely cespitose, forming large patches and turfs 0.3–1 m diam. |
Stems | erect to ascending, simple, 2–10 cm, sparsely hirsute and stipitate-glandular, internodes shortened. |
Leaves | basal or near basal, sometimes proximal cauline, subrosulate; petiole 0 mm; blade 1-veined or palmately 3-veined, linear to narrowly oblanceolate, 15–50 × 1.5–5 mm, base long-cuneate, often subclasping, margins entire, dentate-serrate, or distally dentate, apex acute, surfaces glabrous or adaxial sparsely short-pilose, eglandular. |
Flowers | herkogamous, 1. |
Styles | glabrous. |
Corollas | yellow, red-spotted or -striped, bilaterally symmetric, weakly bilabiate, loosely hirsute on abaxial side of opening; tube-throat narrowly campanulate, 18–22 mm, exserted beyond calyx margin; lobes broadly obovate-oblong, apex rounded- or truncate-notched, throat open. |
Fruiting pedicels | (40–)65–85(–120) mm, glabrous or sparsely stipitate-glandular near base. |
Fruiting calyces | winged- or plicate-angled, tubular-campanulate, weakly or not inflated, 9–10(–12) mm, glabrous. |
Capsules | included, 6–7 mm. |
Anthers | included or slightly exserted, margins ciliate, glabrous. |
Erythranthe linearifolia |
|
Phenology | Flowering Jul–Sep. |
Habitat | Wet banks, Darlingtonia seeps and bogs, seepages in serpentine talus. |
Elevation | 600–2800 m. (2000–9200 ft.) |
Distribution |
CA
|
Discussion | Erythranthe linearifolia is endemic to serpentine substrates in Shasta, Siskiyou, and Trinity counties; typical E. primuloides occurs in the same area but not on serpentine. Erythranthe linearifolia is distinct from E. primuloides especially in its narrow leaves and cespitose habit. A collection from Tulare County appears to be E. linearifolia (Shevock 10597, CAS), but this appears to be far out of range and the voucher should be reexamined; it probably is better identified as an unusual collection of E. primuloides. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 390. |
Parent taxa | Phrymaceae > Erythranthe |
Sibling taxa | |
Synonyms | Mimulus primuloides var. linearifolius, M. linearifolius, M. primuloides subsp. linearifolius |
Name authority | (A. L. Grant) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
Web links |
|