// SPECIES PROFILE · PERENNIAL · NATIVE
Underwood's spikemoss (Selaginella underwoodii) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2a–10b. Mature size 1"–2".

[ growing · ecology · siting · care ]
Underwood's spikemoss (Selaginella underwoodii) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2a–10b. Mature size 1"–2".
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.
[ guild · polyculture · cross-layer pairings ]
In the same native range, underwood's spikemoss pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Mexican Hat (Ratibida columnifera), Sneezeweed (Helenium autumnale).