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FOC | Family List | FOC Vol. 5 | Chenopodiaceae | Corispermum

4. Corispermum tylocarpum Hance, J. Bot. 6: 47. 1868.

毛果绳虫实 mao guo sheng chong shi

Corispermum declinatum Stephan ex Iljin var. tylocarpum (Hance) C. P. Tsien & C. G. Ma; C. gmelinii Bunge; C. rostratum A. Baranov & B. Skvortsov ex W. Wang.

Plants 10-50 cm tall. Stem erect, much branched. Leaves linear to linear-lanceolate, 2-6 cm × 2-4 mm, 1-veined, base attenuate, apex acuminate, mucronate. Spikelike inflorescence elongate, linear-cylindric, interrupted to ± dense, 5-10(-15) × 0.5-0.7 cm; bracts linear-lanceolate to narrowly ovate, 0.5-3 cm × 2-3 mm, 1(-3)-veined, base broadly cuneate, margin membranous, apex acuminate. Perianth segments 1(or 3). Stamens 1(or 3). Utricle obovate-oblong, 3-4 × ca. 2 mm, glabrous or covered with dendroid or stellate hairs, base broadly cuneate, apex acute; body narrowly obovate, smooth or slightly tuberculate; wing very narrow, margin entire or irregularly erose. Fl. and fr. Jun-Sep.

Sandy wastelands, riversides, field margins, roadsides. Hebei, N Jiangsu, Liaoning, Nei Mongol, Shanxi, Xinjiang [E Mongolia].

Corispermum tylocarpum is closely related to C. declinatum. Plants of typical C. declinatum never have pubescent utricles; they are usually more slender, and the utricles are normally narrower and wingless. Patterns of distribution of C. declinatum s.str. and C. tylocarpum in China are insufficiently known because of confusion of these closely related entities.


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