Ladeania lanceolata
dune scurfpea, lance-leaf scurf-pea, lemon scurfpea, wild lemonweed
branched throughout, not rushlike.
usually palmate, rarely pseudopalmate, persistent through flowering;
petiole (0.5–)0.9–2.9 cm;
leaflets 3(or 5), blades obovate or oblanceolate to linear, 17–35(–40) × 2–13(–16) mm, base attenuate, apex retuse to acuminate, surfaces glabrate to sparsely pubescent.
rachis 0.5–14 cm, internodes to 1.5 cm, elongating or not in fruit.
0.7–12 cm.
calyx 1.5–2.5 mm;
corolla blue to purple, white, or bicolored, 5–7 mm.
conspicuously glandular, sparsely strigose to glabrate.
= 22.
Ladeania lanceolata
Ladeania lanceolata is variable in morphology, which has resulted in the recognition of three to five taxa (P. A. Rydberg 1919; S. L. Welsh et al. 2015). The length of inflorescences, vestiture of pods, and shape of leaflets vary along geographic trendlines throughout its range and seem to grade from one trend to another.
The names Psoralea lanceolata Pursh (1813) and P. elliptica Pursh (1813) have equal priority. However, J. Torrey and A. Gray (1838–1843) placed P. elliptica in synonymy under P. lanceolata, establishing priority of the latter name.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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