Yellow ʻIlima
ExplorePlants
Yellow ʻIlima
sida fallax
The Yellow ȅIlima (Sida fallax) is an exceptionally resilient and culturally revered shrub indigenous to Hawaii and other tropical Pacific islands. Belonging to the mallow family (Malvaceae), this striking plant is legendary for its vibrant yellow-to-orange flowers, which are painstakingly gathered and hand-woven into prestigious leis. Historically, these delicate garlands were associated strictly with Hawaiian royalty (aliȅi), earning the plant a status of deep cultural honor. Beyond its human connections, the species is highly valued for its ecological toughness, acting as a crucial pioneer plant in harsh volcanic soils. Depending on its habitat, it exhibits remarkable variation, adapting seamlessly to different ecological niches across the Pacific.
Habitat: Thrives in sunny, wind-swept coastal shrublands, dry forest margins, and barren low-elevation lava fields.
Appearance
The Yellow ȅIlima is identified by its five-petaled, golden-yellow to rich orange flowers measuring 2 to 3 centimeters in diameter, which bloom continuously throughout the year. Its leaves are heart-shaped or spade-shaped with finely serrated borders, covered in a dense layer of fine, velvety hairs that give them a distinct silvery-green or grayish sheen. The plant's growth form varies dramatically; in coastal environments exposed to heavy winds and salt, it grows as a low, prostrate ground cover reaching only 15 centimeters in height, whereas in sheltered inland areas it matures into an upright, woody shrub reaching up to 300 centimeters.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderMalvalesFamilyMalvaceaeGenusSida
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
In traditional Native Hawaiian medicine, the flowers and root bark were used to prepare remedies for mild illnesses and to ease childbirth.
It can take up to 1,000 individual, hand-picked ȅIlima blossoms to weave a single, highly prized royal lei.
The Yellow ȅIlima is the official island flower of Oȅahu, Hawaii.
Special abilities
Ability
Salt Spray Tolerance
The leaves feature a dense coat of velvety hairs that shield the plant from harsh, salty winds and reduce moisture loss.
Ability
Morphological Plasticity
It adapts its growth habit to its environment, forming a sprawling ground cover in coastal winds or a tall shrub in sheltered inland forests.
Ability
Drought Resistance
An extensive root system and specialized leaf structure allow it to survive and bloom in arid, sun-baked volcanic soils.
Measurements & details
- Length
- 15+ cm
Diet & Feeding
As an autotroph, it produces its own energy via photosynthesis, utilizing sunlight, carbon dioxide, and water.
Primary Foods
- Sunlight
- Water
- Carbon dioxide
- Soil minerals
Ecological connections
mutualism
Blackburn's Blue Butterfly
Udara blackburni
Polinated by and serves as a larval host plant for this endemic Hawaiian butterfly.
mutualism
Western Honey Bee
Apis mellifera
Frequently visited by honey bees for nectar and pollen extraction.
parasite
Hibiscus Snow Scale
Pinnaspis strachani
An invasive scale insect that infests the stems and leaves, sucking sap and weakening the plant.
Traits
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Also known as
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Collections
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Yellow ʻIlima?
The easiest way to identify Yellow ʻIlima is to use the Snappit nature identifier app.
How long is Yellow ʻIlima?
15+ cm
What does Yellow ʻIlima eat?
As an autotroph, it produces its own energy via photosynthesis, utilizing sunlight, carbon dioxide, and water.
Where is Yellow ʻIlima usually found?
Thrives in sunny, wind-swept coastal shrublands, dry forest margins, and barren low-elevation lava fields.
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Where to spot
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