Sunflower, Mirasol

Helianthus praecox

Family: Asteraceae

Plant Description: Annual to 2 m or higher with ovate leaves 6-30 cm long. Plant covered with stiff hairs. Leaves opposite on the lower stems alternate on the upper ones. Heads 6-10 cm wide, solitary. Disks purplish brown. Rays yellow.

Plant Trivia: Mirasol translates to “sunflower”

Field Identification:

Occurrence: Common on clay or heavier sands in pastures, woods,wase places fields, and stream lowlands

Bloom Period: March-December

Plant Use: immature flower heads have been boiled and eaten, tasting a bit like artichoke of the same family. Sunflolwer seeds are a popular food for humans and for wildlife.

Key to the species of Helianthus:

  1. Leaves opposite………………………………………………………………………………H. ciliaris

Leaves partly or all alternate……………………………………………………………………….2

2. Leaves white, woolly………………………………………………………………H. argophyllus

Leaves not white, woolly………………………………………………………………………………3

3. Outer phyllaries ovate, abruptly pointed……………………………………H. annuus

Outer phyllaries lanceolate, tapered to a point…………………………………………4

4. Base of leaves cuneate, grossly serrate…………………………..H. grosseserratus

Base of leaves cordate, irregular, serrate…………………………………….H. praecox