WorldFloraDB - Geum vernum

Characteristics

Plants leafy-stemmed. Stems 20–70 cm, pilose or sparsely pilose, ?hairs septate?. Leaves: basal 4–27 cm, blade simple or pinnate, leaflets 3–11, terminal leaflet larger; cauline 2–7 cm, stipules ± free, 8–25 × 7–12 mm, blade pinnate to 3-foliolate. Inflorescences 3–13-flowered. Pedicels glandular-downy, becoming glabrate in fruit. Flowers erect; epicalyx bractlets absent; hypanthium green; sepals reflexed, 1–3 mm; petals spreading, yellow to cream, oblong to elliptic, sometimes obovate, 1–2 mm, equal to or shorter than sepals, apex rounded. Fruiting tori on 3–7 mm stipes, glabrous. Fruiting styles geniculate-jointed, proximal segment persistent, 1.5–3 mm, apex hooked, nearly glabrous except for few septate-glandular hairs, distal segment deciduous, 0.7–1 mm, nearly glabrous except for short hairs. 2n = 42.

More

Stems erect or ascending, 3–6 dm; some basal lvs long-petioled, simple or nearly so, others smaller and pinnate; principal cauline lvs pinnate or some trifoliolate, with several toothed and often deeply cleft divisions, the upper and lower cauline lvs reduced; sep triangular, reflexed; bractlets none; pet yellow or white, 1–2 mm; head of achenes on a stipe 1–2 mm; achenes 2–3 mm, minutely appressed-puberulent; terminal segment of the style 0.7 mm, inserted on the very tip of the basal segment; 2n=42. Rich woods; s. Ont. to s. Wis., Io., and Kan., s. to Tenn. and nw. Okla.; also c. and s. N.Y., N.J., and Pa. Apr., May.

Life form

perennial

Growth form

herb

Growth support

-

Foliage retention

deciduous

Sexuality

hermaphrodite

Pollination

-

Spread

-

Mature width (meter)

-

Mature height (meter)

0.5

Root system

-

Rooting depth (meter)

0.3

Root diameter (meter)

-

Flower color

Blooming months

Jan	Feb	Mar
Apr	May	Jun
Jul	Aug	Sep
Oct	Nov	Dec

Fruit color

-

Fruiting months

-

Nitrogen fixer

-

Photosynthetic pathway

c3

Environment

Light
Soil humidity
Soil texture
Soil acidity
Soil nutriment	-
Hardiness (USDA)

Usage

Uses	-
Edible	-
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Can be grown by seedlings.

Mode	seedlings
Germination duration (days)	21 - 28
Germination temperacture (C°)	18 - 21
Germination luminosity	-
Germination treatment	-
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-

Images

Distribution

Identifiers

LSID	urn:lsid:ipni.org:names:725402-1
WFO ID	wfo-0001013004
COL ID	6KFWC
BDTFX ID	-
INPN ID	-
Wikipedia (EN)	Link
Wikipedia (FR)

Synonyms

Stylipus vernus Geum vernum Stylypus vernus Stilopus vernus Stylopus vernus Stypostylis vernus

WorldFloraDB 2024

Geum vernum (Raf.) Torr. & A.Gray

Spring avens (en)

Species

Angiosperms > Rosales > Rosaceae > Geum