Native & Naturalized Plants of the Carolinas & Georgia


3835

Forb
Annual/Biennial

Non-native: Mediterranean Europe

Documented growing wild in - - SC

Rare

Look for it in disturbed areas, per Weakley's Flora

map
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Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

 

LEAVES:
Simple
Alternate
Basal leaves have stout petiole-like bases; stem leaves auriculate-clasping.

FLOWER:
Spring/Summer
Disc: Pinkish/ Purplish
Rays: Absent
Bisexual
Inferior ovary

FRUIT:
Spring/Summer
Achene

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales

WEAKLEY'S FLORA (11/30/12):
Silybum marianum   FAMILY Asteraceae__

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Silybum marianum   FAMILY Asteraceae__

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933)
Mariana mariana

(?) INVALID NAME Carduus marianus

 

COMMON NAME:
Milk-thistle, Blessed-thistle


Click or hover over the thumbnails to see larger pictures.

image of Silybum marianum, Milk-thistle, Blessed-thistle

Bruce A. Sorrie    bas_silybum_marianum1

November    Juan Fernandez Is.    Chile

Leaf blades pinnately lobed and spinescent on and near the margins, per Manual of the Southeastern Flora (JK Small, 1933).

image of Silybum marianum, Milk-thistle, Blessed-thistle

Bruce A. Sorrie    bas_silybum_marianum1c

November    Juan Fernandez Is.    Chile

Tall thistle-like herbs, the stem not winged, per Manual of the Southeastern Flora (JK Small, 1933).

image of Silybum marianum, Milk-thistle, Blessed-thistle

Bruce A. Sorrie    bas_silybum_marianum1d

November    Juan Fernandez Is.    Chile

Leaves green with white mottles, per Weakley's Flora.

image of Silybum marianum, Milk-thistle, Blessed-thistle

Bruce A. Sorrie    bas_silybum_marianum2

November    Juan Fernandez Is.    Chile

Bracts conspicuous, spiny-ciliate with broad bases and firm spine-armed tips, per Manual of the Southeastern Flora (JK Small, 1933).