Achyranthes japonica

(Miquel) Nakai

Bot. Mag. (Tokyo) 34: 39. 1920

Common names: Japanese chaff-flower
Basionyms: Achyranthes bidentata var. japonica Miquel
Treatment appears in FNA Volume 4. Treatment on page 437. Mentioned on page 435.
Plants perennial. Stems 0.75–1.5 m, glabrous or slightly pubescent. Leaf blades ovate-elliptic, 2.5–13.5 × 0.2–6.8 cm, base tapering, apex acute to acuminate, pubescent on veins abaxially, short-pubescent adaxially, varying to glabrous or glabrescent. Inflorescences 2–4 cm in flower, elongating to 21 cm in fruit; bracteoles spinose; basal wings attached at base and sometimes slightly on sides. Flowers: tepals 5, 4–5 mm; pseudostaminodes with margins entire, denticulate, or slightly 2-lobed at apex. Utricles elliptic, 2.5 mm.

Phenology: Flowering summer.
Habitat: Wooded riverbanks
Elevation: 100-200 m

Distribution

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Ky., Ohio, W.Va., Asia.

Discussion

The plants of Achyranthes japonica in our area evidently belong to var. hachijoensis Honda, which has glabrous or glabrescent leaves.

Lower Taxa

No lower taxa listed.