Erythranthe filicaulis
Phytoneuron 2012-39: 36. 2012.
Annuals, taprooted. Stems erect, simple or branched at basal nodes, 4–30 cm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. Leaves cauline, basal usually not persistent; petiole 0 mm; blade 1-veined or palmately 3-veined, linear to oblanceolate, 6–15 × (1–)2–3 mm, base attenuate, margins entire to remotely mucronulate, teeth 1–3 per side, apex acute, surfaces densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. Flowers herkogamous, 2–8, from medial to distal nodes. Fruiting pedicels 9–30 mm, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped. Fruiting calyces reddish brown-spotted, strongly angled, cylindric-campanulate, 7–9 mm, margins distinctly toothed or lobed, densely glandular-puberulent, hairs 0.05–0.1 mm, gland-tipped, ribs corky, lobes pronounced, spreading. Corollas pink to purple, throat dark red-purple, palate ridges yellow, bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular; tube-throat cylindric-funnelform, 8–12(–17) mm, exserted beyond calyx margin; limb expanded 10–14 mm, lobes notched, palate villous. Styles glabrous. Anthers included, hirtellous. Capsules included, 5–7 mm. 2n = 16.
Phenology: Flowering May–Jul.
Habitat: Moist open areas on gentle slopes, meadows, roadsides, gravelly soils.
Elevation: 800–1800 m.
Discussion
Erythranthe filicaulis is known only for certain from Mariposa and Tuolumne counties. Kappler 1691 (UCLA) from Madera County also may be this species.
Selected References
None.