The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

bulbous wood rush

field wood-rush

Rhizomes

short, slender, bearing few to several white, swollen (storage) leaf bases.

conspicuous.

Culms

weakly cespitose or solitary, 8–40 cm.

not cespitose, decumbent, 10–20 cm.

Stolons

short, slender.

Leaves

basal leaves few;

cauline leaves 2–3, to 17 cm × 7 mm, margins scarcely to densely ciliate.

basal leaves few, 2.5–15 cm × 4 mm, apex callous, pilose.

Inflorescences

glomerules 3–20 (each with 6–20 flowers), central glomerules sessile or nearly sessile, cylindric, 5–12 × 5–7 mm;

peduncles straight, erect, 0.5–7 cm;

proximal inflorescence bract leaflike (margins pilose), shorter than inflorescence, margins pilose;

bracts purplish with long clear apex, sheathing, margins sparsely to densely ciliate;

bracteoles white-clear, shining, margins fimbriate.

racemose;

glomerules 2–6, central glomerules sessile or all congested, not cylindric;

peduncles straight, divergent as much as 90°, to 3 cm;

proximal inflorescence bract dark, often purplish, leaflike.

Flowers

tepals with shining chestnut centers and usually wide clear margins and apex, 2–3 mm;

outer whorl usually exceeding inner whorl, at least by awned tip;

anthers 1–2 times filament length;

stigmas 3–4 times length of styles.

tepals dark reddish, shining, with wide clear margins and apex, (apex acuminate, midrib extending as awned tip), 3–3.5 mm;

outer and inner whorls equal;

anthers ca. 2–6 times filament length;

stigmas ± equal to style.

Capsules

brown, shining, obovoid (apex truncate), equal or longer than tepals, apex truncate.

brown, shining, (usually lighter than tepals), conspicuously shorter than to nearly equal to tepals; (beak obvious).

Seeds

dark brown, ellipsoid, 0.9–1.3 mm;

caruncle 0.5–0.7 mm.

reddish, globose, 1–1.3 mm;

caruncle to 1/2 seed length.

2n

= 12.

= 12.

Luzula bulbosa

Luzula campestris

Phenology Flowering and fruiting spring–early summer. Flowering and fruiting summer.
Habitat Dry situations in woods and fields 50–600 m Sunny clearingsHabitat??
Elevation 500–900 melevation??
Distribution
from FNA
AL; AR; CT; DC; DE; FL; GA; IL; IN; KS; KY; LA; MA; MD; MO; MS; NC; NJ; NY; OH; OK; PA; SC; TN; TX; VA; WV
[WildflowerSearch map]
[BONAP county map]
from FNA
NF [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
Discussion

Luzula bulbosa has slender rhizomes that bear few to several white, swollen (storage) leaf bases; cauline leaves (numbering 2–3) have scarcely to densely ciliate margins; flowers have stigmas 3–4 times the length of the styles.

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

Luzula campestris may occur rarely elsewhere in Canada and the United States in lawns and cleared places (collected in Massachusetts in the 1920s). A common European species, the name is used in our floras for almost every species of the "multiflora–campestris" complex.

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

Source FNA vol. 22. FNA vol. 22.
Parent taxa Juncaceae > Luzula > subg. Luzula Juncaceae > Luzula > subg. Luzula
Sibling taxa
L. acuminata, L. arctica, L. arcuata, L. campestris, L. comosa, L. confusa, L. divaricata, L. echinata, L. groenlandica, L. hitchcockii, L. kjellmaniana, L. luzuloides, L. multiflora, L. orestera, L. pallidula, L. parviflora, L. piperi, L. rufescens, L. spicata, L. subcapitata, L. subcongesta, L. wahlenbergii
L. acuminata, L. arctica, L. arcuata, L. bulbosa, L. comosa, L. confusa, L. divaricata, L. echinata, L. groenlandica, L. hitchcockii, L. kjellmaniana, L. luzuloides, L. multiflora, L. orestera, L. pallidula, L. parviflora, L. piperi, L. rufescens, L. spicata, L. subcapitata, L. subcongesta, L. wahlenbergii
Synonyms L. campestris var. bulbosa Juncus campestris
Name authority (A. Wood) B. B. Rydberg: Brittonia 1: 85. 1931Smyth, B. B. & L. C. R. Smyth, Trans. Kansas A (Linnaeus) de Candolle: in J. Lamarck and A. P. de Candolle, Fl. France, ed. 3 3: 161. (1805)
Web links