Trillium gracile

J. D. Freeman

Sida 3: 289. 1969.

Common names: Slender trillium graceful trillium
Endemic
Treatment appears in FNA Volume 26. Treatment on page 110. Mentioned on page 95, 117.
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Rhizomes horizontal, brownish, thick, short, praemorse, not brittle. Scapes 1–3, round in cross-section, 1.6–3.5 dm, slender, glabrous. Bracts held well above ground, sessile; blade mottled with darker green blotches, mottling becoming obscure with age, elliptic-ovate to obovate, 6–8.5 × 2.6–4 cm, base rounded, apex obtuse or rounded, rarely acute. Flower odor musty or funguslike; sepals displayed above bracts, bases at right angle to scape axis, widely spreading with recurved tips, dark purple on adaxial surface, lanceolate to oblong, 20–25 × 4–5 mm, margins entire, apex obtuse; petals long-lasting, erect, weakly connivent, at least partially obscuring stamens, dark purple or maroon, rarely yellow, not spirally twisted, linear-elliptic to oblanceolate, 2–4 × 0.3–0.8 cm, ± thick-textured, margins entire, flat, apex acute; stamens erect, 12–16.5 mm; filaments purple, 2–3 mm, slender; anthers erect, straight, purple to yellow, 10–15 mm, slender, dehiscence introrse; connectives straight, extending 0.1–1 mm beyond anther sacs; ovary purple, ovoid, 3-angled, 4–11 mm; stigmas erect, spreading-recurved, distinct, purple to whitish, sessile, subulate, 2–4 mm, fleshy, thickened basally. Fruits dark greenish purple, fragrance not reported, ovoid, swollen enough to conceal its 3-angled nature, 1 cm, pulpy, moist.


Phenology: Flowering spring (early–mid Apr).
Habitat: Mature pine and hardwood forests, banks and ridges of dissected stream- beds, rather dense shade, low sandy flatwoods
Elevation: 0–10 m

Discussion

Selected References

None.

Lower Taxa

None.

"compressed-shortened" is not a number. "elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property."thicker" is not a number.

... more about "Trillium gracile"
purple +  and yellow +
versatile +  and dorsifixed +
more or less equaling or longer +
cordate +  and linear +
slender +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
acute +, obtuse +  and rounded +
Frederick W. Case Jr. +
J. D. Freeman +
whorled +, opposite +  and alternate +
dark purple +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
lanceolate +  and oblong +
4mm;5mm +
reticulate-veined +  and parallel-veined +
mottling +  and mottled with darker green blotches +
6 cm60 mm <br />0.06 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
elliptic-ovate +  and obovate +
2.6 cm26 mm <br />0.026 m <br /> (4 cm40 mm <br />0.04 m <br />) +
not mottled +, , +, mottled in darker green or bronze +  and green +
mottled +  and green +
1;several +
obovate;elliptical +
tunicate +  and scaly +
thin-walled +
Slender trillium +  and graceful trillium +
La. +  and Tex. +
yellowish +  and white +
0–10 m +
connate-coroniform +  and dilated +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
funguslike +
unisexual +  and bisexual +
baccate +  and capsular +
dark greenish +
swollen +
1 cm10 mm <br />0.01 m <br /> (?) +
Mature pine and hardwood forests, banks and ridges of dissected stream- beds, rather dense shade, low sandy flatwoods +
paired +, paniculate +  and racemose +
persistent +
3-angled +
3-angled;ovoid +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
many;several +
zygomorphic +  and actinomorphic +
yellow +, maroon +  and dark purple +
long-lasting +
distinct +
linear-elliptic;oblanceolate +
thick-textured +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering spring (early–mid Apr). +
parietal +  and axile +
6-lobed +  and 3-lobed +
branched +, unbranched +  and monopodial +
not brittle +
subterranean +
praemorse +
straight +
erect +  and arising +
slender +
wind-distributed +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
alternating +
maroon +  and green +
persistent +
distinct +
lanceolate +, ovate +  and oblong +
divergent +  and alternating +
adnate +  and free +
staminodial +
1.2 cm12 mm <br />0.012 m <br /> (1.65 cm16.5 mm <br />0.0165 m <br />) +
purple +  and whitish +
persistent +
spreading-recurved +  and erect +
subulate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
3 +  and 1 +
Trillium gracile +
Trillium subg. Phyllantherum +
species +
connate +  and distinct +
sepaloid +  and petaloid +
narrower +
rhizomatous +  and scapose +
3 +  and 2 +