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.

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 +