Polygala paucifolia Willd.
Family: Polygalaceae
Polygala paucifolia image
Nathanael Pilla  
Perennial herb 8 - 15 cm tall Stem: creeping and spreading by rhizomes, with ascending flowering stems. Leaves: alternate, with several scale-like (2 - 8 mm long) lower leaves scattered along the stem and three to six stalked, elliptic to oval leaves (1.5 - 4 cm long) crowded near the stem tip. Flowers: borne one to four at end of stem, rose-purple to pink or white, with three small outer sepals and two inner petal-like sepals (wings) about the same length as the petals. The three petals are fused into a tube 1.3 - 2.3 cm long, and one petal is fringed. There are also a few self-pollinating flowers near the base that remain closed (cleistogamous). Fruit: a dehiscent capsule, 6 mm long, nearly circular in outline, notched at the tip, with a three-lobed appendage (aril) attached to the seed.

Similar species: The other Polygala species with alternate leaves, Polygala incarnata, Polygala polygama, Polygala sanguinea, and Polygala senega, are taller with erect stems, and have flowers that are less than 11 mm long.

Flowering: mid to late May

Habitat and ecology: A very rare species found in the high dunes that has nearly been extirpated in the Chicago Region.

Occurence in the Chicago region: native

Etymology: Polygala comes from the Greek words polys, meaning much, and gala meaning milk, referring to the old belief that milkworts would aid in milk secretion. Paucifolia means sparse-leaved.

Author: The Morton Arboretum

Colonial perennial with slender rhizomes emergent from small tubers; stems 8-15 cm, with several scattered scale-lvs 2-8 mm, and near the summit 3-6 elliptic to oval lvs 1.5-4 cm; a few cleistogamous fls usually present at the base; chasmogamous fls 1-4, each on a long pedicel from the very short terminal peduncle, rose-purple to white, 13-19 mm, the cor about equaling the obovate wings; stamens 6; stigma obscurely bilobed; fr suborbicular, 6 mm, notched at the tip; seed with a 3-lobed aril. Moist rich woods; Que. and N.B. to Sask., s. to Conn., N.Y., Wis., and in the mts. to Ga. May, June. (Triclisperma p.)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.