// SPECIES PROFILE · ANNUAL · NATIVE

Large clammyweed

Polanisia erosa

Large clammyweed (Polanisia erosa) is a annual in the — family. Native range includes AR, OK. Hardy in zones 6a–10a. Mature size 6"–2'. Blooms Mar–Oct.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to AR, LA, OK, TX
USDA hardiness: Zones 6a–10a
Mature size: 6"–2'
Sun: —
Water: —
Bloom: Mar–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Large clammyweed (Polanisia erosa) — *Polanisia erosa* — Large clammyweed. Photo by Michael Gras, M.Ed. via Wikimedia Commons (CC BY 2.0).

Field Notes

[ growing · ecology · siting · care ]

Large clammyweed (Polanisia erosa) is a annual in the — family. Native range includes AR, OK. Hardy in zones 6a–10a. Mature size 6"–2'. Blooms Mar–Oct.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, large clammyweed pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Indian Blanket (Gaillardia pulchella), Lemon Beebalm (Monarda citriodora).