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// SPECIES PROFILE · GRASS · NATIVE

Cone-cup spikerush

Eleocharis tuberculosa

Cone-cup spikerush (Eleocharis tuberculosa) is a grass in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 3a–11b. Mature size 1"–30".

// QUICK FACTS
Family
—
Group
grass
Native range
Native to 22 U.S. states, including AL, AR, CT, DC, DE, FL…
USDA hardiness
Zones 3a–11b
Mature size
1"–30"
Sun
—
Water
—
Bloom
—
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Cone-cup spikerush (Eleocharis tuberculosa)
Eleocharis tuberculosa — Cone-cup spikerush. Photo via iNaturalist — no rights reserved.

Field Notes

[ growing · ecology · siting · care ]

Cone-cup spikerush (Eleocharis tuberculosa) is a grass in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 3a–11b. Mature size 1"–30".

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, cone-cup spikerush pairs naturally with: Big Bluestem (Andropogon gerardii), Common Rush (Juncus effusus), Fox Sedge (Carex vulpinoidea), Indiangrass (Sorghastrum nutans).

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