Trillium discolor |
Trillium recurvatum |
|
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mottled wakerobin, pale yellow trillium, small yellow toadshade |
bloody butcher, bloody noses, prairie trillium, prairie wakerobin, toadshade |
|
Rhizomes | horizontal, brownish, short or somewhat compressed-thickened, bulblike, praemorse, not brittle. |
horizontal, white, slender, elongated, brittle. |
Scapes | 1–2, 1–2.2 dm, slender, essentially glabrous. |
typically 1(–3), round in cross section, 1.5–4.8 dm, slender to robust, 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. |
held well above ground, strongly petiolate; blade at first strongly mottled in darker green or bronze, mottling fading with seasonal expansion after anthesis, rarely all green, ovate, elliptic, or lanceolate, 6–18 × 2.5–6.5 cm, not glossy, apex acuminate; petiole ca. 1/5 bract length. |
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 not reported; sepals strongly recurved basally and held against scape by turgor pressure, green, sometimes purple-streaked, ovate-lanceolate, 18–35 × 6–18 mm, margins entire, apex acute; petals long-lasting, erect, ± connivent, ± concealing stamens and ovary, dark maroon purple to clear yellow, occasionally 2-colored with purple and yellow, not spirally twisted, lanceolate to ovate, 1.8–4.8 × 0.9–2 cm, thick-textured, base attenuate to weakly clawed, margins entire, apex acute; stamens incurved, 10–15 mm; filaments erect, dark purple, 4–6 mm, ± slender; anthers strongly incurved above filaments, dark purple, 5–16 mm, ± thick, dehiscence introrse; connectives strongly incurved inward, dark purple, projecting about 1 mm beyond anther sacs; ovary greenish with ± purple stains distally, transversely rhombic to angular-ovate, somewhat 6-angled or -winged, 7–10 mm, ± equaling filament height; stigmas erect, divergent-recurved, distinct, ± linear, 4–6 mm, slightly thickened basally. |
Fruits | baccate, greenish white, subglobose, weakly 6-winged, 1–5 × 1 cm, pulpy or mealy, not juicy. |
green to white- and purple-streaked, odorless, rhomboid-ovoid, 6-angled, almost winged, ca. 1 cm diam., pulpy. |
2n | = 10. |
= 10. |
Trillium discolor |
Trillium recurvatum |
|
Phenology | Flowering spring (mid Apr–early May). | Flowering spring (late Mar–late May). |
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 | Rich clayey floodplain soils, plants often temporarily inundated while in flower, rich moist woods and bluffs, limestone-derived soils |
Elevation | 100–200 m (300–700 ft) | 100–200 m (300–700 ft) |
Distribution |
GA; NC; SC
|
AL; AR; IA; IL; IN; KY; LA; MI; MO; MS; OH; TN; TX; WI
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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 recurvatum has several named color forms, most notably forma shayi E. J. Palmer & Steyermark with clear yellow petals, and one foliose anomaly (possibly caused by mycoplasma). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 109. | FNA vol. 26, p. 114. |
Parent taxa | Liliaceae > Trillium > subg. Phyllantherum | Liliaceae > Trillium > subg. Phyllantherum |
Sibling taxa | ||
Name authority | T. Wray ex Hooker: Bot. Mag. 58: plate 3097. (1831) | L. C. Beck: Amer. J. Sci. Arts 11: 178. (1826) |
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