B. beringii

Culture

Endangered Status

Data Deficient

Original Botanical Description or Link to

Herb monoecious, perennial, terrestrial, up to 45 cm tall. Stem unbranched, erect and arching, 3– 4 mm in diameter, maroon, strigose, internodes 1.5–5.0 cm long. Stipule persistent, green, lanceolate, 5–7 × 2–3 mm, sparsely pilose adaxially, glabrous abaxially, margin ciliate, apex cuspidate. Leaves alternate; petiole terete, 4–10 × 1.5–2.0 mm, maroon, sparsely strigose; lamina asymmetric, basifixed, lanceolate, 5–12 × 1–3 cm, base cordate, inequilateral, margin lacerated, serrate to double serrate, apex acuminate; adaxially green, minutely echinate between veins, sometimes with white spots coloration, abaxially pale green, reddish-brown along the edge, minutely scabrid; secondary veins 5–7 pairs. Inflorescence axillary, few-flowered, 1(–2). Staminate flower bracteoles persistent, lanceolate, 4–5 × 1.0–1.5 mm, red, sparsely puberulent, margin ciliate, apex acuminate; pedicel 4.5–7.0 mm long, white, sparsely puberulous; tepals 4, white; outer tepals broadly ovate to suborbicular, 10–11 × 6.5–7.5 mm, adaxially glabrous, abaxially sparsely puberulent, apex rounded; inner tepals linear to oblanceolate, 6.0–6.5 × 2.0–2.5 mm, glabrous on both surfaces, apex acute; androecium actinomorphic, stamens 25–30, filaments ca. 1 mm long, fused at base; anthers obovoid, 2–3 mm, apex retuse. Pistillate flower bracteoles persistent, lanceolate, 4.5–5.0 × 1.0–1.2 mm, red, puberulent, margin ciliate, apex acuminate; pedicel 4.5–5.0 mm long, white, sparsely puberulent; tepals 5, pinkish, glabrous on both surfaces; outer tepals elliptic to obovate, 9–10 × 5.0–6.5 mm, apex rounded; inner tepals oblong to oblanceolate, 9.5–11.0 × 3.0–5.5, apex rounded, apex rounded; styles 3, yellow, apically bifid, 3.0–3.5 mm long, stigma in spiral band and papillose all around; ovary trigonous-elliptic, pale green, 8.0–8.5 × 5.0–5.5 mm (wings excluded), short hirsute; wings 3(–4), subequal, pale green, pinkish on the edge, distally truncate, 6–9 mm long, 3.5–6.5 mm wide; locules 3, placenta bilamellate. Capsule trigonous-elliptic, 7–10 × 14–16 mm (wings included); pedicel 5.0–5.5 mm long; wings 3, subequal, truncate distally, acute proximally, 7.5–8.0 mm long, 6.5–8.0 mm wide