Heterotheca canescens

Heterotheca canescens (DC.) Shinners has silvery green leaves due to the high density of hairs.  The species is mostly diploid (2n=18) with  tetraploids (2n=36) occurring in the central part of the range.  See Semple (2006 FNA).

Heterotheca canescens range

Last revised 21 April 2025 by J.C. Semple

© 2025 J.C. Semple, including all photographs unless otherwise indicated

Heterotheca canescens 2196 Texas
Heterotheca canescens S 2224, TX
Heterotheca canescens S 2203 inflor
Heterotheca canescens flowers 2728 Barber Co KS

captions

1-2. Heterotheca canescens. 1. Habit and habitat, Semple 2196, Burnett Co., Texas 2. Large plants, Sermple & Brouillet 3334, Hays Co. Texas. 3. Inflorescence branchs and heads, S 3334. 4. Upper stem leaves and head, Semple & Brammall 2728, Barber Co. Kansas.