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// SPECIES PROFILE · PERENNIAL · NATIVE

Small matweed

Guilleminea densa var. aggregata

Small matweed (Guilleminea densa var. aggregata) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 4a–11a. Mature size 6"–1'. Blooms May–Oct.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to AZ, CA, CO, MD, NM, OK, SC, TX
USDA hardiness
Zones 4a–11a
Mature size
6"–1'
Sun
—
Water
—
Bloom
May–Oct
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Small matweed (Guilleminea densa var. aggregata)
Guilleminea densa var. aggregata — Small matweed. Photo via iNaturalist — (c) aacocucci, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Small matweed (Guilleminea densa var. aggregata) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 4a–11a. Mature size 6"–1'. Blooms May–Oct.

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, small matweed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis), Lady Fern (Athyrium filix-femina).

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