Arisaema parvum (Araceae)
Plants dioecious. Tuber globose, 1.2–1.8cm. Cataphylls 3–4.5cm, acute. Leaf solitary; petiole green, 6–18cm, smooth, base forming pseudostem; leaf blade 3-foliolate; central leaflet obovate or obcordate, 1.8–5.5 × 2–6cm, base cuneate usually with red margins, apex truncate or concave, with a short acumen; lateral leaflets obliquely ovate, 3–8 × 3–7cm, acuminate. Peduncle green, shorter than petioles, 5–12cm, smooth. Spathe tube color rather demarcated between dark purple (or dark carmine) proximal part and greenish distal part with whitish stripes, cylindric, 1.5–3.5 × 1.3–1.5cm, throat obliquely truncate, not recurved; limb greenish, broadly lanceolate, 3–6 × ca. 3.5cm, apex acute or acuminate, incurved. Spadix unisexual; male zone ca. 6mm; synandria stipitate; anthers usually 2, yellow, dehiscing by horseshoe-shaped slit; appendix shorter than spathe, 5–6cm, slender, base suddenly expanded into a disk, stipitate, distally recurved. Female spadix unknown.
This material was reprinted with permission from the Missouri Botanical Garden Press, St. Louis, and Science Press, Beijing.
This material was reprinted with permission from the Missouri Botanical Garden Press, St. Louis, and Science Press, Beijing.
Alpine grasslands, meadows.