Grindelia lanceolata Nutt.

Narrowleaf gumweed (en)

Species

Angiosperms > Asterales > Asteraceae > Grindelia

Characteristics

Biennials or perennials (perhaps flowering first year), 30–150 cm. Stems erect, whitish, stramineous, or reddish, usually glabrous, rarely sparsely pilose near bases. Cauline leaf blades triangular, ovate, or oblong to lanceolate or linear, 25–60(–110) mm, lengths 3–12 times widths, bases cuneate or ± clasping, margins usually serrate to dentate (teeth apiculate to setose), rarely entire, apices acute to acuminate, faces usually glabrous (or, near margins, scabridulous, rarely puberulous) and usually not, rarely notably, gland-dotted. Heads usually in corymbiform arrays, rarely borne singly. Involucres broadly urceolate to globose, 8–15 × 10–20+ mm. Phyllaries in 5–6(–9) series, weakly spreading to appressed, filiform to linear or lanceolate, apices slightly recurved or straight to incurved, terete, slightly to moderately resinous. Ray florets 12–36; laminae 10–16 mm. Cypselae stramineous to grayish, 2–6 mm, apices coronate or knobby, faces smooth or striate; pappi of 2 straight, smooth (apices often dilated), setiform awns 4–8 mm, usually equaling to slightly surpassing disc corollas. 2n = 12.
More
Short-lived, monocarpic perennial sometimes sparsely hairy below, 3–15(–20) dm; lvs scarcely punctate, sharply serrate or serrulate with bristle-tipped teeth (seldom entire), acute to acuminate, the middle ones linear or lance-oblong, 4–11 cm × (2–)4–28 mm; disk 1–2 cm wide; invol bracts only slightly resinous, loose, not markedly imbricate; rays 15–30, 10–16 mm; achenes 4–6 mm; pappus-awns mostly 2, entire; 2n=12. Dry, open places, often on limestone; c. Tenn., s. Ind., and s. Ill. to Kans., Tex., and N.M. June–Sept. Ours is var. lanceolata.
Life form
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 1.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Dry soils on prairies and roadsides. Calcareous soils in Texas. Limestone glades and rocky prairies, calcareous beach deposits from sea level to 700 metres.
Light 7-9
Soil humidity 1-6
Soil texture 3-5
Soil acidity 3-9
Soil nutriment -
Hardiness (USDA) 5-8

Usage

Uses dye medicinal
Edible leaves saps
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Grindelia lanceolata flower picture by Kendra RaiderNature (cc-by-sa)

Distribution

Grindelia lanceolata world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:210616-1
WFO ID wfo-0000001689
COL ID 6KT3G
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Grindelia lanceolata f. lanceolata Grindelia lanceolata Grindelia lanceolata var. lanceolata Grindelia texana var. lanceolata Grindelia lanceolata var. texana Grindelia texana var. texana Grindelia littoralis

Lower taxons

Grindelia lanceolata var. greenei Grindelia lanceolata var. subincisa