plant 8–20 in. high; stem usually simple, 1 1/2–3 lin. thick below, pubescent, with internodes 1/2–1 in. long; leaves spreading or somewhat deflexed; petiole 1 1/2–6 lin. long; blade 1 3/4–4 1/2 in. long, 4–14 lin. broad, oblong or lanceolate, acute, obtuse, or rounded and apiculate at the apex, rounded or broadly cuneate at the base, usually undulate at the margins, somewhat roughly pubescent or subscabrous on both sides or glabrous above; umbels 2–4-flowered, sessile at the nodes or the lowest shortly pedunculate; pedicels 1/2–1 in. long, pubescent; sepals 6–9 lin. long, 3–3 1/2 lin. broad, lanceolate, very acute, pubescent; corolla about 1 1/2 in. in diam., inflated-globose, thinly pubescent outside or glabrous on both sides, yellow or yellowish-green, spotted with dark purple-brown; united part 6–7 lin. long; lobes 8–9 lin. long, 9–11 lin. broad, broadly ovate, acute, incurved, with overlapping margins and recurved tips; corona-lobes very spreading, with much incurved tips, 3/4 in. long, linear or linear-lanceolate, sometimes somewhat spathulate at the tips, bearing upon their basal half 2 long contiguous keels, which at the angular base do not nearly rise to the level of the top of the anther-wings, then gradually tapering into the lobe, apparently yellow, often dotted with purple-brown; staminal column 3 1/2–4 lin. long, broadly conical; anther-appendages suborbicular or elliptic-ovate, obtuse, inflexed over the rim of the truncate 5-crenate excavated style-apex; pollen-carriers seated just below the rim of the style-apex; follicles solitary, about 3 1/2 in. long, 3/4–1 in. thick, stoutly fusiform-lanceolate, equally tapering to base and apex, obtuse, with 6 entire wings 1–1 1/2 lin. broad, thinly and minutely puberulous. null
