Sonchus arvensis Click here to see more photos of this species Taxonomy: Identification: Country:... Sonchus arvensis Click here to see more photos of this species Taxonomy: Identification: Country:... Dan Teglia - missouriplants.com You ought to know: Habitat : waste ground disturbed sites Height :... Dan Teglia - missouriplants.com You ought to know: Habitat : waste ground, disturbed sites Height :... Fruiting head. Disk flowers - Absent. Flowering - June - October. Habitat - Waste ground roadsides... Fruiting head. Disk flowers - Absent. Flowering - June - October. Habitat - Waste ground, roadsides,... Photo © Carl Farmer 14 Oct 2003 Portree Skye Back to species list Photo © Carl Farmer 14 Oct 2003 Portree, Skye Back to species list Disk flowers - Absent. Flowering - May - October. Habitat - Waste ground disturbed sites roadsides... Disk flowers - Absent. Flowering - May - October. Habitat - Waste ground, disturbed sites, roadsides... Family - Asteraceae Stems - To 1.5m tall erect herbaceous glabrous glaucous hollow with milky... Family - Asteraceae Stems - To 1.5m tall, erect, herbaceous, glabrous, glaucous, hollow, with milky... Photo © Carl Farmer 14 Oct 2003 Portree Skye RH head c 19 mm from involucre-base to flowerhead-tip Photo © Carl Farmer 14 Oct 2003 Portree, Skye RH head c 19 mm from involucre-base to flowerhead-tip head again--do you see the old head to the right beginning to produce fruits? head again--do you see the old head to the right, beginning to produce fruits? Fruiting head. Disk flowers - Absent. Flowering - June - October. Habitat - Waste ground roadsides... Fruiting head. Disk flowers - Absent. Flowering - June - October. Habitat - Waste ground, roadsides,... Sonchus asper ssp. asper (L.) Hill Asteraceae (Sunflower Family) Europe Prickly Sow Thistle ... Sonchus asper ssp. asper (L.) Hill Asteraceae (Sunflower Family) Europe Prickly Sow Thistle ... Photo © Carl Farmer 31 Aug 2002 Scorrybreac Skye Back to species list Photo © Carl Farmer 31 Aug 2002 Scorrybreac, Skye Back to species list Involucre in flower. Involucre in flower. Leaves - Alternate sessile clasping glabrous dentate (the teeth with minute prickle tips) to... Leaves - Alternate, sessile, clasping, glabrous, dentate (the teeth with minute prickle tips), to... Inflorescence. Involucre - To 1.5cm tall(long) +/-1cm in diameter at base vase-shaped. Phyllaries... Inflorescence. Involucre - To 1.5cm tall(long), +/-1cm in diameter at base, vase-shaped. Phyllaries... Photo © Carl Farmer 23 Nov 2002 Portree Skye Frequent in waste ground often up against walls... Photo © Carl Farmer 23 Nov 2002 Portree, Skye Frequent in waste ground, often up against walls... latex-- Sonchus belongs to a group of Asteraceae that share a number of characterisics including... latex-- Sonchus belongs to a group of Asteraceae that share a number of characterisics, including... Stem with aphids. Leaves - Alternate sessile clasping auriculate with undulate spiny margins... Stem with aphids. Leaves - Alternate, sessile, clasping, auriculate, with undulate spiny margins,... ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 Photo © Carl Farmer 14 Oct 2003 Portree Skye Auricle c 3.2 cm vertically including spines Photo © Carl Farmer 14 Oct 2003 Portree, Skye Auricle c 3.2 cm vertically including spines Involucre. Ray flowers - Perfect fertile. Flower heads to 2.7cm broad. Ligules to 6mm long 1.5mm... Involucre. Ray flowers - Perfect, fertile. Flower heads to 2.7cm broad. Ligules to 6mm long, 1.5mm... ヨーロッパが原産です。わが国へは古い時代に渡来し、いまでは各 ヨーロッパが原産です。わが国へは古い時代に渡来し、いまでは各 E San Juan Creek N Stonehill 3-1-15. © Ron Vanderhoff . E San Juan Creek, N Stonehill, 3-1-15. © Ron Vanderhoff . Involucre in fruit. Ray flowers - Head to 5cm broad. Flowers fertile. Ligules yellow -3cm long 3-4... Involucre in fruit. Ray flowers - Head to 5cm broad. Flowers fertile. Ligules yellow, -3cm long, 3-4... La Laguna. Tenerife Sonchus acaulis es un endemismo de las islas centrales que pertenece al grupo... La Laguna. Tenerife Sonchus acaulis es un endemismo de las islas centrales, que pertenece al grupo... April Photo March Photo April Photo March Photo Common Groundsel Senecio vulgaris Common Groundsel Senecio vulgaris Leaf bases. Inflorescence - Terminal loose corymbiform cluster. Cluster subtended by foliaceous... Leaf bases. Inflorescence - Terminal loose corymbiform cluster. Cluster subtended by foliaceous... ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端 ヨーロッパが原産です。わが国へは明治時代に渡来しました。道端
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