// SPECIES PROFILE · ANNUAL · NATIVE

Buffalo bur

Solanum rostratum

Buffalo bur (Solanum rostratum) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11a. Mature size 1"–30". Blooms May–Sep.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 48 U.S. states, including AL, AR, AZ, CA, CO, CT…
USDA hardiness: Zones 2a–11a
Mature size: 1"–30"
Sun: Full sun
Water: —
Bloom: May–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Buffalo bur (Solanum rostratum) — *Solanum rostratum* — Buffalo bur. Photo by Juan Carlos Fonseca Mata via Wikimedia Commons (CC BY-SA 4.0).

Field Notes

[ growing · ecology · siting · care ]

Buffalo bur (Solanum rostratum) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11a. Mature size 1"–30". Blooms May–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, buffalo bur pairs naturally with: Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Annual ragweed (Ambrosia artemisiifolia var. artemisiifolia), Lambsquarters (Chenopodium album).