Taxon	Illustrator ⠉
	Neillia incisa Prunus ilicifolia var. ilicifolia Prunus pensylvanica Prunus ilicifolia var. integrifolia	Marjorie C. Leggitt Marjorie C. Leggitt Marjorie C. Leggitt

Shrubs, 2.5–25 [–40] dm. Stems 1–20+, arching, sometimes rooting at tips; bark redbrown [to greenish]; glabrous or slightly hairy [to densely yellowbrown pubescent when young]. Leaves deciduous, cauline; stipules persistent [deciduous], ovatelanceolate to elliptic, margins remotely to strongly serrate; petiole present; blade ovate, 2–6 [–12] cm, herbaceous, margins flat, incised or lobed, lobes [3–] 7–11, poorly or well developed, singly or doubly serrate, venation palmate, abaxial surface glabrous or sparsely hairy (especially on main veins), adaxial glabrous or sparsely hairy. Inflorescences terminal, sometimes also axillary, 3–70+-flowered, racemes or panicles to corymbs; bracts present deciduous; bracteoles absent; peduncles present. Pedicels present. Flowers [3–] 4–5 [–10] mm diam.; hypanthium cupshaped [obconic, campanulate], [2–] 3–5 [–12] mm, glabrous or sparsely hairy [glandular-pubescent, densely hairy]; sepals 5, ascending, triangular to oblong [elliptic]; petals 5, white [pink or reddish], obovate; stamens [5–] 10 [–30] in 1 [–2] whorl (s), shorter than [approximately equal to] petals; carpels 1 [–5]; ovules 2 [–10]. Fruits follicles [aggregated], 1, obliquely subglobose [ellipsoid or cylindric], 2–3 [–5] mm diam., dehiscent from base, enclosed in or protruding from hypanthium, glabrous or sparsely to moderately pilose [glandular-pubescent, densely hairy]; hypanthium persistent; sepals persistent, ascending to erect. Seeds 1 [–4]. x = 9.

Distribution

Introduced; Va., Asia, also in Europe

Discussion

Species 15–20 (1 in the flora).

Neillia has traditionally been considered to be one of three genera of Neillieae, the others being Physocarpus and Stephanandra. Few, if any, consistent morphologic differences exist between Neillia and Stephanandra, and a molecular phylogenetic analysis by Oh S. H. and D. Potter (2005) strongly suggested that Stephanandra originated from within Neillia, perhaps by hybridization of the two main lineages. The authors follow Oh (2006) in treating Neillia more broadly to include Stephanandra. Various members of Neillia are cultivated horticulturally in North America. Only N. incisa appears to have naturalized (and apparently only sparingly); but other species have the potential to do so.

Selected References

None.

Lower Taxa

Neillia incisa

"thin" is not a number."dm" is not declared as a valid unit of measurement for this property.