Xyris scabrifolia

R. M. Harper

Bulletin of the Torrey Botanical Club30: 325. 1903

Synonyms: Xyris chapmanii
Found in FNA Volume 22.
FNA22 P30 Xyris pg 163.jpeg
Herbs, perennial, cespitose, occasionally solitary, 2–10(–11) dm, base bulbous to nearly bulbous. Stems compact. Leaves erect to ascending, 10–50 cm; sheaths pinkish, rugulose, papillate, or scabrous to nearly smooth, soft; blade dull green, linear, flattened, slightly to very twisted, 2.5–10 mm wide, smooth to papillate or scabrous, margins smooth to scabrous. Inflorescences: scape sheaths exceeded by leaves; scapes linear, terete, to 2.5 mm wide, smooth to minutely scabrous, 2–4-ribbed distally, ribs papillate to minutely scabrous; spikes prevalently ovoid-ellipsoid, (7–)10–17(–20) mm; fertile bracts 6–8 mm, margins entire, apex rounded. Flowers: lateral sepals included, slightly curved, 6–8 mm, keel scarious, lacerate to lacero-fimbriate; petals unfolding midday or afternoon, blade broadly obovate to nearly orbiculate, 3–5 mm; staminodes bearded. Seeds translucent, ellipsoid-cylindric, 0.6–1 mm, longitudinally multiribbed with fainter cross ribs. 2n = 18.

Phenology: Flowering summer–fall.
Habitat: Sandy peats of deep pineland bogs and seeps, bog edges
Elevation: 0–200 m


Ala., Fla., Ga., La., Miss., N.C., Tex.


Although I have seen no records from South Carolina, Xyris scabrifolia is to be expected there.

Several examples of what Bridges and Orzell have named Xyris chapmanii, together with a series of my own of this morph, show such intergradation that it is impossible to break the two out even as varieties.



Facts about "Xyris scabrifolia"
AuthorRobert Kral +
Elevation0–200 m +
HabitatSandy peats of deep pineland bogs and seeps, bog edges +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering summer–fall. +
ReferenceNone +
SynonymXyris chapmanii +
Taxon nameXyris scabrifolia +
Taxon parentXyris +
Taxon rankspecies +
VolumeVolume 22 +