an annual herb, erect or ascending, very nearly glabrous, 3–8 in. high, branched at the base or nearly simple; stem and branches striate, terete; radical leaves rosulate, narrowly oblanceolate, obtuse or rounded at the apex, attenuate at the base, more or less deeply pinnatifid, glabrous, 1/2–1 1/2 in. long, 1/8– 1/3 in. broad; teeth or lobes ovate or oblong, obtuse; petioles 1/4– 3/4 in. long, dilated towards the base; upper leaves alternate or fasciculate, often distant; peduncles axillary or subradical or subfasciculate and subterminal, slender, 1-flowered, 1–3 in. long; flowers nodding, large, about 3/4 in. in diam.; calyx-segments ovate, acuminate at the apex, broad and overlapping near the base, 1/8– 1/6 in. long, ciliolate with very short whitish hairs; corolla slightly puberulous outside, about 1/2 in. long and 2/3– 3/4 in. broad, with two wide pouches (about 1/10 in. long and broad) at the base; stamens all fertile; two lower filaments dilated and incurved at the middle; young capsules obliquely ovoid, short. null