Triphysaria eriantha

(Bentham) T. I. Chuang & Heckard
Syst. Bot. 16: 660. 1991.
Common names: Johnny-tuck
Basionym: Orthocarpus erianthus Bentham Scroph. Ind., 12. 1835
Treatment appears in FNA Volume 17. Treatment on page 685. Mentioned on page 592, 680.

Stems simple or with 1–10 ascending branches proximally, 2–37 cm, glabrous proximally, puberulent to glandular-puberulent distally. Leaves puberulent to glandular-puberulent; proximal cauline: blade linear, 5–25 mm; cauline: blade ± ovate or obovate, 8–50 mm, base sessile, margins pinnatifid, rarely bipinnatifid, lateral lobes 2–11. Spikelike racemes interrupted, dense distally, 1–24 cm; peduncle absent; bracts pinnatifid, rarely bipinnatifid, ± ovate, 2–30 mm, lateral lobes 2–8. Pedicels 0.3–0.5 mm, glabrous. Flowers: calyx 6–13 mm, puberulent to glandular-puberulent, tube 4–7 mm, lobes triangular to narrowly lanceolate, 1–4 × 1–1.5 mm; corolla yellow, rarely yellow and white, or white, fading to rose pink, 10–25 mm, densely hairy, beak dark purple, not hooked, abaxial lobes spreading, 2–5 mm, throat abruptly indented, forming a fold under abaxial corolla lip, adaxial lobes projecting; stamens included, pollen sac yellow, 1.5–2 mm, glabrous, dehiscing longitudinally; style 12–22 mm, glabrous; stigma capitate. Capsules 4–8 × 2.5–4.5 mm, glabrous. Seeds 30–100, ovoid, 0.5–1 mm.


Subspecies 2 (2 in the flora).

Selected References



1 Corollas yellow, rarely yellow and white. Triphysaria eriantha subsp. eriantha
1 Corollas white, fading to rose pink. Triphysaria eriantha subsp. rosea