B. kuchingensis

Culture

Endangered Status

Data deficient

Original Botanical Description or Link to

http://tai2.ntu.edu.tw/taiwania/pdf/tai.2017.62.105.pdf: Plant monoecious, lithophytic, perennial. Stems erect or ascending, rooting at lower nodes, 30–65 cm tall, 4–7(–12) mm thick, olive brown to crimson, densely velutinous, internodes 1.5–4(–8) cm long, nodes swollen. Stipules pale green or reddish, hyaline, ovate-triangular to widely ovate, 1–2.5 cm long, 0.7– 1.5 mm wide, abaxially densely minutely puberulous and sparsely velutinous, strongly keeled, margin entire or sparingly puberulous, apex cuspidate. Petioles terete, 3–8 cm long, ca. 2.5 mm thick, crimson, densely velutinous. Leaves oblique, more or less pendent; lamina ovate to widely ovate, basifixed, strongly asymmetric with a well-developed basal lobe on one side giving a cordate appearance, margin dentate to denticulate, apex acuminate or shortly caudate, 15–25 cm long (basal lobes included), 7–13.5 cm wide, broad side 5–9.5 cm wide, base unequal, basal lobes cordate, 1–4 cm long, succulent, adaxially dark green to emerald green, venation crimson towards base, slightly bullate between veins, hispid, hairs ca. 1 mm long, adaxially sometimes iridescent and appearing bluish; abaxially pale green; venation palmate-pinnate, midrib distinguishable, 14–21 cm long, with ca. 4 major lateral veins on either side of midrib, other primary veins branching dichotomously, all venation reddish and prominently raised abaxially. Bracts at basal node of inflorescence pale green to reddish, ovate-triangular, ca. 1.7 cm long, 1 cm wide, abaxially minutely puberulous and velutinous, margin entire; those at apex of inflorescence in staminate flowers suborbicular, 2.5–5 mm across. Inflorescence a cymosely branching panicle 5–10 cm long, terminal, bisexual, densely velutinous; peduncle up to 3 cm long, staminate inflorescence a racemose cyme, erect or ascending, terminal, crimson, densely velutinous; pistillate flowers up to 4, ca. 0.7–2 cm apart, produced singly from short peduncle (sometimes subsessile) in the lower part of the inflorescence; protogynous. Staminate flower: pedicel 2.5–5 mm long, tomentose, tepals 2, pale pink to rose pink, widely ovate to orbicular, 4–6 mm long, 3.5–5.5 mm wide, abaxially minutely puberulous, margin entire or sparsely puberulous, apex rounded; androecium actinomorphic, stamens ca. 45, filaments subequal, fused at base; anthers very widely obovate, apex truncate or retuse, ca.1 mm long, equal or longer than filaments. Pistillate flower: pedicel ca. 4 mm long, puberulous; ovary pale green tinged red, body trigonous-ellipsoid, ca. 6 mm long, 3 mm across, puberulous, 3-winged; wings rounded to base, truncate or rounded distally, 7–10 mm long, 1.5–3 mm wide; ovary 3-locular, placenta bilamellate; tepals 5 (sometimes 4), pale green, tinged reddish towards, outer tepals widely ovate to oblong, ca. 8 mm long, 5 mm wide, abaxially minutely puberulous; inner tepals similar but glabrous, margin denticulate; styles 3, yellow, bifid, ca. 4 mm long; stigmas in a spiral band and papillose all around. Fruit recurved horizontally, pedicel 8–16 mm long, capsule 1.4–2.2 cm long, 1.1–1.6 cm across(wings included), puberulous, 3-locular, placentae bilamellate; wings 3, subequal, trapezoid, rounded or truncate distally, rounded proximally.