Herbs dwarf; rhizomes short, woody. Stems erect, branched at middle (branches rebranched), slender, 15-25 cm. Leaves sessile, scale-like, 1-1.5 mm, decurrent along stems to form ridges, 1-veined. Inflorescences cymose, fasciculate, 1-3-flowered; bracts scale-like, ca. 1.5 mm; bracteoles 4, scale-like, shorter than perianth, bracts and bracteoles forming an involucre around base of perianth. Perianth 5-merous, slightly dirty yellow, broadly campanulate, ca. 1.5 mm, tube divided to middle, ca. 1 mm, lobes triangular, margin inflexed. Stamens 5, on basal 1/3 of lobes; filaments short. Ovary sessile. Style erect, slightly shorter than stamens; stigma ± globose. Nutlet ovoid, ca. 2 × 2 mm, with ridges and inconspicuous reticulate veins, gradually narrowed to base; persistent perianth arched, adnate, slightly umbulate, short. Fl. May, fr. Aug. Herb, stems long, angular, sulcate, side shoots concentrated at shoot apices, spirally inserted. Leaves bract-like. Juvenile shoots bracteate at the apex; bracts crowded, spirally inserted, 1–1.5 by 0.6 mm, elongate-deltoid, outer surface covered in a smooth waxy deposit, older stems sparsely bracteate with occasional side shoots arising from bract axils. Inflorescences terminal, subtended by an involucre of quincuncially arranged bracts; bracts ovate, lanceolate, 1.5–2 by 0.7 mm, apex acuminate, outer surfaces convex, inner surface flat. Flowers with receptacle 1 by 0.8–1 mm; tepals deltoid 0.5–0.6 by 0.5 mm, fleshy, outer surface convex, inner surface flat with a distinctive lip or edge at the margin; filaments slender, tortuous, 0.3 by 0.1 mm; anthers dorsifixed, 0.4 by 0.3 mm; nectary membranous, concave, smooth, 5-lobed; stigma sessile. Fruit nut-like, 4–4.5 by 3–3.5 mm, sessile or shortly pedicellate; pedicel decurrent, exocarp thin, rugulate with 10 longitudinal, raised bands running from the apex to the base of the fruit; mesocarp absent; endocarp 2.5–3 by 3–3.5 mm. Between 1,200 and 1,300 m in open areas in marshy grassland and grassy areas of Quercus-Pinus forests. Herbs dwarf; rhizomes short, woody. Stems erect, branched at middle (branches rebranched), slender, 15-25 cm. Leaves sessile, scale-like, 1-1.5 mm, decurrent along stems to form ridges, 1-veined. Inflorescences cymose, fasciculate, 1-3-flowered; bracts scale-like, ca. 1.5 mm; bracteoles 4, scale-like, shorter than perianth, bracts and bracteoles forming an involucre around base of perianth. Perianth 5-merous, slightly dirty yellow, broadly campanulate, ca. 1.5 mm, tube divided to middle, ca. 1 mm, lobes triangular, margin inflexed. Stamens 5, on basal 1/3 of lobes; filaments short. Ovary sessile. Style erect, slightly shorter than stamens; stigma ± globose. Nutlet ovoid, ca. 2 × 2 mm, with ridges and inconspicuous reticulate veins, gradually narrowed to base; persistent perianth arched, adnate, slightly umbulate, short. Fl. May, fr. Aug. Between 1,200 and 1,300 m in open areas in marshy grassland and grassy areas of Quercus-Pinus forests. Thailand, Laos. Herb, stems long, angular, sulcate, side shoots concentrated at shoot apices, spirally inserted. Leaves bract-like. Juvenile shoots bracteate at the apex; bracts crowded, spirally inserted, 1–1.5 by 0.6 mm, elongate-deltoid, outer surface covered in a smooth waxy deposit, older stems sparsely bracteate with occasional side shoots arising from bract axils. Inflorescences terminal, subtended by an involucre of quincuncially arranged bracts; bracts ovate, lanceolate, 1.5–2 by 0.7 mm, apex acuminate, outer surfaces convex, inner surface flat. Flowers with receptacle 1 by 0.8–1 mm; tepals deltoid 0.5–0.6 by 0.5 mm, fleshy, outer surface convex, inner surface flat with a distinctive lip or edge at the margin; filaments slender, tortuous, 0.3 by 0.1 mm; anthers dorsifixed, 0.4 by 0.3 mm; nectary membranous, concave, smooth, 5-lobed; stigma sessile. Fruit nut-like, 4–4.5 by 3–3.5 mm, sessile or shortly pedicellate; pedicel decurrent, exocarp thin, rugulate with 10 longitudinal, raised bands running from the apex to the base of the fruit; mesocarp absent; endocarp 2.5–3 by 3–3.5 mm.General Information
Source: [
Source: [
Ecology
Source: [
Flora of China @ efloras.org
General Informatione-Flora of Thailand
Ecology
