Polygonum tenue var. microspermum Engelm.

, Proc. Acad. Nat. Sci. Philadelphia [15]: 75, adnot. (1863).
IPNI Life Sciences Identifier (LSID)
Species Name
Polygonum tenue Michx., Fl. Bor.-Amer. (Michaux) 1: 238 (1803).
Proceedings of the Academy of Natural Sciences of Philadelphia. Philadelphia, PA
[15]: 75, adnot.
Family as entered in IPNI

Type Information

Collector Team
E. Greene s.n.
Bergen Park
Collection Date
14 Sep 1877
Type Herbaria
neotype NDG
Chosen By
Costea & Tardif Brittonia 57(1): 16. 2005 [Mar 2005]
Distribution Of Types
Jefferson County (Colorado, Northwestern U.S.A., Northern America)


Basionym of
Polygonum microspermum (Engelm.) Small, Bull. Torrey Bot. Club 19(12): 366 (1892), nom. illeg.
Nomenclatural link
Polygonum douglasii var. microspermum (Engelm.) Dorn, Vasc. Pl. Wyoming 299 (1988).
Replaced synonym of
Polygonum engelmannii Greene, Bull. Calif. Acad. Sci. 1(3): 126 (1885).
Same citation as
Polygonum tenue var. microspermum Engelm.