Cordylanthus tenuis
Proc. Amer. Acad. Arts 7: 383. 1868.
Stems erect to ascending, 20–80(–120) cm, glabrous or sparsely glandular-puberulent, puberulent, and/or pilose. Leaves puberulent, often pilose, or glabrous; proximal 20–60 mm, margins entire or 3-lobed, lobes 0.5–1 mm wide; distal 10–40 × 0.3–2 mm, margins entire. Inflorescences spikes, 2–7-flowered, or flowers solitary; bracts 1–4, 5–20 mm, margins entire or 3-lobed, lobes green or purple distally, narrowly lanceolate to linear-lanceolate, apex rounded. Pedicels: bracteoles 10–20 mm, margins entire or toothed. Flowers: calyx 10–20 mm, tube 0 mm, apex 2-fid, cleft 1 mm; corolla pale yellow, marked with purple along veins and galea, 10–20 mm, throat 6–8 mm diam., abaxial lip 4–6 mm, ca. equal to and appressed to adaxial; stamens 4, filaments hairy, fertile pollen sacs 2 per filament, equal. Capsules narrowly ovoid, 5–10 mm. Seeds 6–16, dark brown, ovoid to rhomboid, 1.5–2.5 mm, striate.
Distribution
Calif., Oreg.
Discussion
Subspecies 5 (5 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Leaf lobes filiform; stems glabrous proximally. | Cordylanthus tenuis subsp. brunneus |
| 1 | Leaves or leaf lobes linear to linear-lanceolate; stems puberulent, glandular-puberulent, glandular-pubescent, and/or pilose proximally. | > 2 |
| 2 | Bracts densely hirsute. | Cordylanthus tenuis subsp. barbatus |
| 2 | Bracts hirsute or pilose. | > 3 |
| 3 | Bracts entire. | Cordylanthus tenuis subsp. tenuis |
| 3 | Bracts 3-lobed, sometimes entire. | > 4 |
| 4 | Leaves yellow-green; inflorescences 4–6-flowered. | Cordylanthus tenuis subsp. pallescens |
| 4 | Leaves green to gray-green; inflorescences 1–3-flowered. | Cordylanthus tenuis subsp. viscidus |