Stats

Lifespan: Annual
Size: Large
Diet: Photosynthetic
Biome: Temperate grassland
Range: North America
Movement: Sessile
Breeding: Seeds
Defense: Toxins
Status: Common

About

A tall annual herb crowned by a single broad flower head whose disk florets spiral in interlocking Fibonacci sets of 34 and 55. Young heads track the sun across the sky each day, a motion called heliotropism that stops once the flower matures and settles facing east.

Life cycle

1.
seed
A dormant seed waits for water and warmth before germinating.
2.
sprout
A first shoot emerges with cotyledon leaves and a tap root reaching down.
3.
sapling
A young plant grows true leaves and a stem or trunk, putting on height each season.
4.
mature
Fully grown, flowering or fruiting at adult size.

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Taxonomy

Kingdom: Plantae
Phylum: Tracheophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species: Helianthus annuus