// SPECIES PROFILE · PERENNIAL · NATIVE

Colorado greenthread

Thelesperma ambiguum

Colorado greenthread (Thelesperma ambiguum) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2b–10a. Mature size 1"–20". Blooms Mar–Jun.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to CO, NM, OK, TX
USDA hardiness: Zones 2b–10a
Mature size: 1"–20"
Sun: —
Water: —
Bloom: Mar–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Colorado greenthread (Thelesperma ambiguum) — *Thelesperma ambiguum* — Colorado greenthread. Photo via iNaturalist — (c) Reid Hardin, 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, colorado greenthread pairs naturally with: Aromatic Aster (Symphyotrichum oblongifolium), Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis).