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bashful trillium, bashful wakerobin, Catesby's trillium

giant trillium, giant white wakerobin, sessile trillium, smallflower trillium, white toadshade

Rhizomes

short, tapered to a point distally.

horizontal, ± erect, brown, superficially bulblike, short, thick, not brittle.

Scapes

1–2, round in cross section, 2–4.5 dm, slender, glabrous.

often several from same rhizome terminus, round in cross section, 2.2–5.8 dm, stout.

Bracts

usually raised somewhat, exposing flower;

blade green, often with underlying purplish maroon in well-lighted plants, major veins on adaxial surface deeply engraved, elliptic-ovate, 6.5–15 × 4–8 cm, including elongated, petiolelike base, proximal 1/3 of leaf gradually tapered to base, margins often slightly raised, apex blunt-acute to acuminate.

held well above ground, sessile;

blade weakly mottled with scattered, darker green spots, mottling often fading later in season, broadly ovate, 10–20 × 12–15 cm, not glossy, base rounded, apex obtuse.

Flower

opening at or recurved below bracts, rarely erect;

sepals falcate-recurved, green or streaked with purple, linear-lanceolate, 20–45 × 7–8 mm, margins ± flat, apex acuminate;

petals falcate-recurved distally, white, pink, or rose, darkening to pink or nonfading with age, veins visible but not appearing engraved, elliptic-oblong to oblong-lanceolate, 3.5–5 × 1–2+ cm, thin-textured, bases somewhat imbricated, forming funnel-like tube, margins undulate, apex acuminate;

stamens prominent, recurved, 16–25 mm;

filaments white, slightly longer and narrower than anthers;

anthers recurving, bright yellow, 5–14 mm, thick, dehiscence introrse;

ovary inconspicuous, white, angular-ovoid, deeply 6-angled, 4–12 × 3–7 mm, slender, base narrow;

style 2–6 mm;

stigmas prominent, strongly curled (circinate) to erect, connate basally, pale green or white, not lobed, 4–10 mm, uniformly thin;

pedicel deflexed or recurved, rarely erect, angled, 2–4(–5) cm.

borne directly upon bracts, erect, fragrance roselike;

sepals conspicuous, spreading, displayed above bracts, pale green, lanceolate, 30–65 × 12–15 mm, margins entire, apex acute;

petals long-lasting, usually erect or slightly spreading, ± connivent, ± concealing stamens and ovary basally, white to creamy white, rarely soft pinkish rose near base, veins prominent but not engraved, not spirally twisted, obovate, more lanceolate in young plants, 4.8–8 × 2.2–3 cm, widest at or just above middle, ± thick-textured, base cuneate, margins entire, ± flat, apex rounded to acute;

stamens erect, greenish white, 15–25 mm;

filaments whitish green, 3–4 mm, slender;

anthers erect, straight, yellow, 11–20 mm, dehiscence latrorse;

connectives straight, extended ca. 1 mm beyond anther sacs, rounded;

ovary green or occasionally purple, ovoid, rounded 6-gonal, 6–11 mm;

stigmas erect to spreading, distinct, sessile, subulate, 4–7 mm, thin distally.

Fruits

baccate, greenish or whitish, ovoid-globose, angles less prominent when mature, 1–1.5 cm diam., pulpy but not juicy.

green or purplish green, fragrance unknown, ovoid to globose, pulpy, juicy.

Trillium catesbaei

Trillium albidum

Phenology Flowering spring–summer (late Mar–early Jun). Flowering spring (mid Mar–late Apr).
Habitat Acid soils, open dry or rich woods, laurel and rhododendron thickets, cove forests Moist slopes in rich mixed deciduous-coniferous forests or coniferous stands, brushy thickets on flats, open fields, pastures, and fencerows, dense second-growth coniferous forests, floodplains along streams and larger rivers
Elevation 50–800 m (200–2600 ft) 100–200 m (300–700 ft)
Distribution
from FNA
AL; GA; NC; SC; TN
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Elliott, author of Trillium catesbaei, apparently recognized one of its forms separately as T. nervosum. This name is still mentioned in British horticultural and botanical literature, but it is rarely found in U.S. literature. North American botanists treat T. nervosum as a synonym of T. catesbaei.

Plants of Trillium catesbaei from deep coves in South Carolina tend to have petals that are deeper pink and longer and wider than those of many other populations.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 26, p. 96. FNA vol. 26, p. 106.
Parent taxa Liliaceae > Trillium > subg. Trillium Liliaceae > Trillium > subg. Phyllantherum
Sibling taxa
T. albidum, T. angustipetalum, T. cernuum, T. chloropetalum, T. cuneatum, T. decipiens, T. decumbens, T. discolor, T. erectum, T. flexipes, T. foetidissimum, T. gracile, T. grandiflorum, T. kurabayashii, T. lancifolium, T. ludovicianum, T. luteum, T. maculatum, T. nivale, T. ovatum, T. parviflorum, T. persistens, T. petiolatum, T. pusillum, T. recurvatum, T. reliquum, T. rivale, T. rugelii, T. sessile, T. simile, T. stamineum, T. sulcatum, T. underwoodii, T. undulatum, T. vaseyi, T. viride, T. viridescens
T. angustipetalum, T. catesbaei, T. cernuum, T. chloropetalum, T. cuneatum, T. decipiens, T. decumbens, T. discolor, T. erectum, T. flexipes, T. foetidissimum, T. gracile, T. grandiflorum, T. kurabayashii, T. lancifolium, T. ludovicianum, T. luteum, T. maculatum, T. nivale, T. ovatum, T. parviflorum, T. persistens, T. petiolatum, T. pusillum, T. recurvatum, T. reliquum, T. rivale, T. rugelii, T. sessile, T. simile, T. stamineum, T. sulcatum, T. underwoodii, T. undulatum, T. vaseyi, T. viride, T. viridescens
Synonyms T. affine, T. nervosum, T. stylosum
Name authority Elliott: Sketch Bot. S. Carolina 1: 429. (1817) J. D. Freeman: Brittonia 27: 48, fig. 11. (1975)
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