// SPECIES PROFILE · TREE · NATIVE
Eve's necklace (Styphnolobium affine) is a tree in the — family. Native range includes AR, OK. Hardy in zones 6a–10a. Mature size 12'–30'. Blooms Mar–May.

[ growing · ecology · siting · care ]
Eve's necklace (Styphnolobium affine) is a tree in the — family. Native range includes AR, OK. Hardy in zones 6a–10a. Mature size 12'–30'. Blooms Mar–May. Low water use makes it a strong candidate for xeric and drought-conscious plantings.
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, eve's necklace pairs naturally with: American Holly (Ilex opaca), American Persimmon (Diospyros virginiana), American Sycamore (Platanus occidentalis), Bald Cypress (Taxodium distichum).