Arisaema echinoides H.Li

Tuber subglobose, ca. 2cm in diam., stoloniferous. Cataphylls membranous, acute at apex. Leaf solitary; petiole ca. 24cm, proximally forming pseudostem; leaf blade radiate; leaflets 9, sessile, oblanceolate, 13–16 × 2–3cm, base cuneate, apex acuminate. Peduncle shorter than petioles, ca. 10cm. Spathe tube purple with numerous longitudinal white stripes, cylindric, ca. 5.1cm, broadly auriculate and recurved at throat; limb dark purple with white midrib, oblong-ovate, ca. 7 × 4cm, base slightly constricted, apex abruptly acuminate; pinnate veins 4 or 5 on each side, ascending and connected into intramarginal vein remote from margin for 2–3mm. Spadix white, unisexual; female zone conic, ca. 1.8cm × 7mm, flowers dense; male zone ca. 1.8cm; synandria sessile; anthers 2 or 3, globose, dehiscing by apical pores. Appendix erect, ca. 3cm × 5–7mm, thickened, base truncate and stipitate, apex obtuse and densely echinate; stipe ca. 7 × 3mm.