WorldFloraDB - Vernonia missurica

Characteristics

Plants 6–12(–20+) dm. Stems puberulent. Leaves mostly cauline; blades elliptic to lance-ovate or lanceolate, 6–16(–20+) cm × 18–48+ mm, l/w = 2.5–4(–6+), abaxially usually puberulent to tomentose or pannose (hairs ± erect, ± curled), seldom glabrate, resin-gland-dotted, adaxially scabrellous, glabrescent, not resin-gland-dotted. Heads in corymbiform-scorpioid arrays. Peduncles 3–35 mm. Involucres broadly campanulate to urceolate, (6–)7–10+ × 5–9+ mm. Phyllaries 50–70+ in 6–7 series, sparsely scabrellous, glabrescent (seldom resin-gland-dotted), margins ciliolate, the outer lanceolate, 1–2 mm, inner linear-oblong to oblong, 6–7(–9+) mm, tips acute or rounded-apiculate. Florets 30–55+. Cypselae 3.5–4; pappi stramineous to whitish, outer scales 25–30, 0.5–1.1 mm, contrasting with 35–40+, 6–8+ mm inner bristles. 2n = 34.

More

Stem stout, 1–2 m, pubescent or thinly tomentose; lvs lanceolate, 6–20 × 1.5–6 cm, coarsely serrate to subentire, scabrellate above, thinly to densely tomentose beneath, at least along the veins, with long, crooked hairs; infl widely branched, flattened or concave; fls 32–58; invol bracts appressed, purple, or greenish along the inconspicuous midvein, rounded to acute, often apiculate, arachnoid-ciliate, glabrous or puberulent on the back; pappus tawny to brown; 2n=34. Moist prairies, bottomland pastures, and low roadsides; sw. Ont. to Io. and Nebr., s. to Ala. and Tex. Our plants mostly contaminated by introgression from no. 5 [Vernonia gigantea (Walter) Trel.]

A shrub.

Life form

perennial

Growth form

herb

Growth support

free-standing

Foliage retention

-

Sexuality

hermaphrodite

Pollination

-

Spread

-

Mature width (meter)

-

Mature height (meter)

1.8

Root system

-

Rooting depth (meter)

0.2

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

-

Environment

It is a temperate plant.

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

Usage

The pressed flowers are made into a small bunch and chewed.

Uses	dye fiber medicinal
Edible	flowers
Therapeutic use	Dermatological Aid (unspecified)
Human toxicity	-
Animal toxicity	-

Cultivation

Mode	-
Germination duration (days)	84
Germination temperacture (C°)	4
Germination luminosity	-
Germination treatment	-
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-

Images

Leaf

Flower

Distribution

Identifiers

LSID	urn:lsid:ipni.org:names:30038166-2
WFO ID	wfo-0000023133
COL ID	5B5FR
BDTFX ID	-
INPN ID	-
Wikipedia (EN)	Link
Wikipedia (FR)

Synonyms

Vernonia michiganensis Vernonia aborigina Vernonia reedii Vernonia drummondii Vernonia missurica f. missurica Vernonia missurica var. missurica Vernonia missurica

WorldFloraDB 2024

Vernonia missurica Raf.

Missouri ironweed (en)

Species

Angiosperms > Asterales > Asteraceae > Vernonia