// SPECIES PROFILE · SHRUB · NATIVE

Threadleaf ragwort

Senecio flaccidus var. flaccidus

Threadleaf ragwort (Senecio flaccidus var. flaccidus) is a shrub in the — family. Native range includes KS, OK. Hardy in zones 2b–10b. Mature size 6"–4'. Blooms Apr–Sep.

// QUICK FACTS

Family: —
Group: shrub
Native range: Native to 9 U.S. states, including AZ, CA, CO, KS, NM, NV…
USDA hardiness: Zones 2b–10b
Mature size: 6"–4'
Sun: —
Water: —
Bloom: Apr–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Threadleaf ragwort (Senecio flaccidus var. flaccidus) — *Senecio flaccidus var. flaccidus* — Threadleaf ragwort. Photo via iNaturalist — (c) paulexcoff, some rights reserved (CC BY-SA).

Field Notes

[ growing · ecology · siting · care ]

Threadleaf ragwort (Senecio flaccidus var. flaccidus) is a shrub in the — family. Native range includes KS, OK. Hardy in zones 2b–10b. Mature size 6"–4'. Blooms Apr–Sep.

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, threadleaf ragwort pairs naturally with: Smooth Sumac (Rhus glabra), Wild blue flax (Linum lewisii), Common elderberry (Sambucus nigra ssp. canadensis), White sagebrush (Artemisia ludoviciana ssp. ludoviciana).