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FNA | Family List | FNA Vol. 26 | Liliaceae | Hosta

3. Hosta ventricosa (Salisbury) Stearn, Gard. Chron., ser. 3. 90: 27. 1931.

Blue plantain-lily

Bryocles ventricosa Salisbury, Trans. Hort. Soc. London 1: 335. 1812; Niobe caerulea (Andrews) Nash

Plants forming clumps 80–90 × 50 cm; rhizomes compact. Leaves: petiole spreading horizontally, light green with purple streaks at base, deeply grooved, 18–25 cm; blade lustrous dark green, broadly ovate to cordate, 20–30 × 15–20 cm, apex acuminate; veins in 7–9 lateral pairs. Scape 80–95 cm. Inflorescences: racemes stiffly erect, flushed red at base, 20–30-flowered, to 1 m; floral bracts broad, pale green, white at base; sterile bract 1, leafy, occurring at midpoint. Flowers 4–5.5 cm, not fragrant; perianth urceolate-cylindric; tepals bluish purple, lobes not recurved; anthers spotted purple. Capsules short, triangular, stubby, apex blunt. 2n = 120.

Flowering summer (July). Disturbed open areas; 0--500 m; introduced; Conn., Del., Ky., Md., Mass., Mich., N.J., N.Y., N.C., Ohio, Pa., R.I., Vt., Va., W.Va., expected elsewhere; China; cultivated worldwide.

Hosta ventricosa, a natural tetraploid, undergoes pseudogamous apomixis and therefore breeds true, but is of no use as a seed parent in hybridizing. It can, however, act as a pollen parent. Like H. plantaginea, this species was an early introduction from China.


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