Euthamia graminifolia (L.) Nutt.

Flat-top goldentop (en), Solidage à feuilles de Graminée (fr), Euthamie à feuilles de graminée (fr)

Species

Angiosperms > Asterales > Asteraceae > Euthamia

Characteristics

Glabrous to densely spreading-hirtellous, 3–15 dm; lvs 4–13 cm × 3–12 mm, evidently 3-nerved, the larger ones ordinarily with 1 or 2 additional pairs of fainter lateral nerves; heads mostly sessile or subsessile in small glomerules, mostly 20–35(–45)-fld, with 15–25(–35) rays and (4)5–10(–13) disk-fls; invol turbinate, 3–5 mm; rays minute and oftenscarcely spreading, ca 1 mm; 2n=18. Open, usually moist ground; Nf. and Que. to B.C., s. to N.C., Mo., and N.M. (Solidago g.) The common form in our range is var. graminifolia, with relatively narrow lvs, the middle cauline ones 11–20 times as long as wide, acuminate. Typical var. graminifolia is essentially glabrous. Similar plants with evidently spreading-hirtellous herbage have been called var. nuttallii (Greene) W. Stone, but do not form an ecogeographically distinctive population. The var. major (Michx.) Moldenke is northern, entering our range only in n. Minn.; it has broader lvs, the middle cauline ones mostly 7–11 times as long as wide, merely acute, and is often smaller, with less ample infl.
More
Perennials, 30–150 cm. Stems (commonly branched in distal 1 / 4 ) glabrous or densely spreading-hirtellous, not glaucous. Leaves spreading to ascending; blades 3-or 5-nerved, linear to lanceolate, 37–130 × (2.1–)3–12 mm, lengths 7–20 times widths, abruptly to gradually reduced distally, herbaceous to firm-herbaceous, margins scabro-ciliate, apices obtuse to acuminate, faces usually little and obscurely gland-dotted (26–47 dots per mm²), barely viscid (more so on exposed shores), glabrous or densely spreading-hirtellous. Heads glomerulate, usually in flat-topped arrays (1.5–28 cm diam.), 10–28% of plant heights (branches unequal, giving irregular, broken appearance). Involucres broadly campanulate to campanulate, 3–5.3 mm. Phyllaries often ± yellow basally, outer (at least) usually green-tipped, outer ovate, inner oblong, apices obtuse or broadly acute. Ray florets (7–)17–22(–35). Disc florets (3–)5–7(–13); corollas 2.6–3.4 mm. 2n = 18.
A herb.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination entomogamy
Spread anemochory
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 c3

Environment

Damp to dryish shores, thickets and meadows.
More
It is a temperate plant.
Light 6-9
Soil humidity 5-7
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 3-7

Usage

The leaves are used for tea.
Uses dye material medicinal tea
Edible leaves
Therapeutic use Analgesic (root), Analgesic (flower), Hunting Medicine (flower), Pulmonary Aid (root), Hunting Medicine (unspecified), Febrifuge (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) -
Germination temperacture (C°) 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Euthamia graminifolia habit picture by Matthias Foellmer (cc-by-sa)

Leaf

Euthamia graminifolia leaf picture by marissa fontaine (cc-by-sa)
Euthamia graminifolia leaf picture by karen (cc-by-sa)
Euthamia graminifolia leaf picture by Charles White (cc-by-sa)

Flower

Euthamia graminifolia flower picture by David Hinds (cc-by-sa)
Euthamia graminifolia flower picture by Heffner Laura (cc-by-sa)
Euthamia graminifolia flower picture by Ko Al (cc-by-sa)

Distribution

Euthamia graminifolia world distribution map, present in Austria, Belgium, Canada, Switzerland, Germany, France, United Kingdom of Great Britain and Northern Ireland, Georgia, Hungary, Italy, Moldova (Republic of), Norway, Poland, Romania, Saint Pierre and Miquelon, Slovakia, Sweden, Ukraine, and United States of America

Conservation status

Euthamia graminifolia threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:1004467-1
WFO ID wfo-0000018631
COL ID 3DCYS
BDTFX ID 26345
INPN ID 97862
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Euthamia fastigiata Chrysocoma virginiana Euthamia hirtipes Solidago galetorum Euthamia hirtella Euthamia floribunda Euthamia nuttallii Euthamia tenuifolia Solidago graminifolia Solidago lanceolata Solidago graminifolia f. graminifolia Euthamia caroliniana Solidago x hirtipes Euthamia tenuifolia Euthamia tenuifolia Chrysocoma graminifolia Solidago lanceolata var. lanceolata Solidago graminifolia var. septentrionalis Solidago graminifolia var. major Euthamia tenuifolia var. microcephala Euthamia graminifolia subsp. graminifolia Euthamia graminifolia var. nuttallii Solidago camporum var. tricostata Euthamia graminifolia var. hirtipes Euthamia tenuifolia var. tenuifolia Euthamia graminifolia var. major Euthamia graminifolia var. graminifolia Solidago graminifolia var. graminifolia Solidago tenuifolia var. tenuifolia Euthamia graminifolia