// SPECIES PROFILE · ANNUAL · NATIVE

American bugseed

Corispermum americanum var. rydbergii

American bugseed (Corispermum americanum var. rydbergii) is a annual in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2b–10b. Blooms Aug–Nov.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to AZ, CO, NE, NM, OK, TX, UT
USDA hardiness: Zones 2b–10b
Mature size: —
Sun: —
Water: —
Bloom: Aug–Nov
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

American bugseed (Corispermum americanum var. rydbergii) — *Corispermum americanum var. rydbergii* — American bugseed. Photo via iNaturalist — (c) Dustin Snider, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

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, american bugseed pairs naturally with: Common Sunflower (Helianthus annuus), Rocky mountain bee-plant (Peritoma serrulata), Swamp verbena (Verbena hastata), Powell's amaranth (Amaranthus powellii).