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mottled wakerobin, pale yellow trillium, small yellow toadshade

dwarf white trillium, snow trillium, snow wakerobin

Rhizomes

horizontal, brownish, short or somewhat compressed-thickened, bulblike, praemorse, not brittle.

short, praemorse.

Scapes

1–2, 1–2.2 dm, slender, essentially glabrous.

usually 1, 6-gonal in cross section, 0.3–0.5 dm at onset of anthesis, expanding to 0.45–0.8 dm, slender, glabrous.

Bracts

held well above ground, sessile;

blade mottled dark green over lighter green, mottling fading or blurring with time, ovate, elliptic to almost circular, 6–13 × 4–7 cm, apex acute to acuminate.

distinctly petiolate;

blade bluish green, elliptic-ovate to ovate, 1.5–4.5 cm × 0.7–34 mm, base abruptly rounded to petiole, apex round-obtuse.

Flower

erect, odor faintly pleasant, resembling sweetshrub (Calycanthus sp.);

sepals displayed above bracts, spreading, green, oblong-lanceolate, shorter than petals, 20–30 × 7–19 mm, margins entire, apex acute;

petals long-lasting, erect, ± connivent, ± concealing stamens and ovary to spreading distally, soft pale sulfur-yellow, fading to ± cream, sometimes slightly spirally twisted, widely spatulate, clawed basally, 2.2–5 × 0.9–1.5 cm, thick-textured, margins entire, often upraised adaxially, at least 1 petal with apex strongly apiculate, nipplelike, others with apex apiculate-acuminate;

claw green, sometimes obscurely marked or mottled with purple, broadly cuneate;

stamens incurved-erect, 8–15 mm;

filaments purple, 1–2.5 mm;

anthers erect, straight or arcuate, brown, 6.5–14 mm, dehiscence introrse-latrorse;

connectives straight, extending 1–2 mm beyond anthers;

ovary purplish, ovoid, 6-ridged, 2.5–8.5 mm;

stigmas divergent to erect, distinct, purplish white, subulate, short, 2–6 mm, ± fleshy.

erect, fragrance sweet;

sepals spreading, flat, bluish green, lanceolate, 10–32 × 2–7 mm, shorter than petals, margins entire, apex obtuse;

petals very showy, recurved to erect-spreading, white, veins not engraved on adaxial surface, ovate-elliptic to oblong, 1.5–3.5+ × 0.8–1.5 cm, thin- to firm-textured, margins entire to slightly wavy, apex obtuse-acuminate;

stamens straight, 5–18 mm;

filaments white, slightly shorter than anthers, slender;

anthers straight, pale yellow, 2.5–11 mm, thin, dehiscence introrse;

ovary greenish white, ± globular, obtusely 3-angled;

style with tips spreading, elongate, 0.5–1.5 mm, slender;

stigmas prominent, recurved or curled, connate basally, white, linear, threadlike, 4–12+ mm;

pedicel erect in anthesis, rapidly recurving below leaves after pollination, 5–20 cm.

Fruits

baccate, greenish white, subglobose, weakly 6-winged, 1–5 × 1 cm, pulpy or mealy, not juicy.

greenish white, odorless, globose-ovate, 0.6–1 × 0.5–0.8 cm, pulpy, not juicy.

2n

= 10.

= 10.

Trillium discolor

Trillium nivale

Phenology Flowering spring (mid Apr–early May). Flowering spring (early Mar–early Apr).
Habitat Rather acidic to clearly circumneutral or basic soils of mixed deciduous forests, often under oaks, near Rhododendron thickets, or near tangles of Leucothoë on moist stream banks, slopes near streams Forested, limestone-derived soils, alkaline glacial drift or loess, creeping soils at head of ledges, talus of cliff bases, crevices in limestone cliffs, gravelly deposits on higher floodplain riverbanks
Elevation 100–200 m (300–700 ft) 100–300 m (300–1000 ft)
Distribution
from FNA
GA; NC; SC
[WildflowerSearch map]
[BONAP county map]
from FNA
IA; IL; IN; KY; MD; MI; MN; MO; NE; OH; PA; SD; WI; WV
[WildflowerSearch map]
[BONAP county map]
Discussion

Trillium discolor occurs only in the upper drainage of the Savannah River, but it is locally frequent within its limited range.

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

Trillium nivale occurs primarily at the southern edge of Pleistocene glaciation and shuns humus, leaf deposits, and much plant competition.

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

Source FNA vol. 26, p. 109. FNA vol. 26, p. 100.
Parent taxa Liliaceae > Trillium > subg. Phyllantherum Liliaceae > Trillium > subg. Trillium
Sibling taxa
T. albidum, T. angustipetalum, T. catesbaei, T. cernuum, T. chloropetalum, T. cuneatum, T. decipiens, T. decumbens, 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. albidum, 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. 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
Name authority T. Wray ex Hooker: Bot. Mag. 58: plate 3097. (1831) Riddell: Syn. Fl. West. States, 93. (1835)
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