// SPECIES PROFILE · SHRUB · NATIVE

Riddell's ragwort

Senecio riddellii

Riddell's ragwort (Senecio riddellii) is a shrub in the — family. Native range includes KS, OK. Hardy in zones 2a–10b. Mature size 6"–3'.

// QUICK FACTS

Family: —
Group: shrub
Native range: Native to 9 U.S. states, including AZ, CO, KS, NE, NM, OK…
USDA hardiness: Zones 2a–10b
Mature size: 6"–3'
Sun: —
Water: —
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Riddell's ragwort (Senecio riddellii) — *Senecio riddellii* — Riddell's ragwort. Photo via iNaturalist — (c) Michelle W. （鍾偉瑋）, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Riddell's ragwort (Senecio riddellii) is a shrub in the — family. Native range includes KS, OK. Hardy in zones 2a–10b. Mature size 6"–3'.

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, riddell's ragwort pairs naturally with: False Indigo Bush (Amorpha fruticosa), Smooth Sumac (Rhus glabra), Wild blue flax (Linum lewisii), Common elderberry (Sambucus nigra ssp. canadensis).