familyPenthoraceae
genusPenthorum
Show Lower Taxa
Penthorum
Sp. Pl. 1: 432. 1753.
Gen. Pl. ed. 5, 197. 1754 ,.
Common names: Ditch-stonecrop
Etymology: Greek pente, five, and horos, limit or landmark, alluding to 5-merous flower
Revision as of 22:42, 26 July 2019 by FNA>Volume Importer
Plants rhizomatous or stoloniferous. Stems decumbent or ascending to erect, glabrous proximally, stipitate-glandular distally. Leaf blades elliptic-lanceolate to oblanceolate, base acuminate, apex acuminate. Inflorescences pedunculate, branches stipitate-glandular. Pedicels present, stipitate-glandular. Flowers: hypanthium stipitate-glandular; sepals green or reddish, triangular to narrowly triangular; petals inconspicuous, white or greenish white; filaments white, yellow, or pink, glabrous; anthers yellow or pink. Seeds minutely tuberculate. x = 8 or 9.
Distribution
North America, Europe (Russia), Asia.
Discussion
Species 2 (1 in the flora).
Penthorum chinense Pursh is known from European Russia and Asia.
Selected References
None.