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Rio Grande Copper Lily

zephyranthes tubispatha

The Rio Grande Copper Lily (Zephyranthes tubispatha) is a fascinating and beautiful bulbous perennial belonging to the amaryllis family. Often referred to generally as a rain lily, this diminutive plant has mastered the art of timing, spending much of the year entirely dormant beneath the soil as a small bulb. It waits patiently for the heavy, soaking rains of late summer and early fall. Once the dry earth is drenched, the plant springs to life, sending up delicate, striking blooms seemingly overnight. These fleeting flowers add sudden, vivid splashes of color to otherwise unremarkable pastures, grasslands, and roadsides across the southern United States, the Caribbean, and parts of South America. Because they only bloom for a short window following storms, encountering a field dotted with Rio Grande Copper Lilies is a delightful and ephemeral reward for nature lovers and botanists alike. If you want to identify Rio Grande Copper Lily in the wild, use the Snappit app.

Habitat: Found primarily in open, sun-drenched habitats such as grasslands, pastures, and disturbed roadsides, thriving in well-draining soils that experience periodic heavy rainfall.

Appearance

This species produces a single, solitary flower on a slender, leafless stalk that typically reaches 10 to 25 centimeters in height. The funnel-shaped blossom is highly distinctive, featuring petals that are deeply colored with a coppery-orange to reddish-brown hue on the outside, while the interior reveals a contrasting, bright golden-yellow. The plant's leaves, when present, are narrow, grass-like, and green, often emerging either just before or alongside the striking flowers.

KingdomPlantaePhylumTracheophytaClassLiliopsidaOrderAsparagalesFamilyAmaryllidaceaeGenusZephyranthes
Rio Grande Copper Lily
Rio Grande Copper Lily

Category

Plants

Rarity

Common

Danger

1/5 ยท Very low

Snaps

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Interesting facts

The Rio Grande Copper Lily is famously known as a rain lily because its blooms magically appear as if out of nowhere just days after a heavy downpour.

The genus name Zephyranthes translates to flower of the west wind, referring to Zephyrus, the Greek god of the west wind who brings light spring and summer rains.

To deter herbivores, the bulbs of this plant contain toxic phenanthridine alkaloids, a chemical defense common in the amaryllis family.

Special abilities

Ability

Rain-Triggered Blooming

The plant remains dormant during dry spells and rapidly produces flowers two to three days after a heavy rainstorm.

Ability

Geophytic Dormancy

It utilizes an underground bulb to store water and nutrients, allowing it to survive extreme heat and prolonged drought.

Ability

Nyctinastic Movement

The flowers open wide in bright sunlight and close up during the night or on heavily overcast days to protect their pollen.

Measurements & details

Length
10-25 cm
Lifespan
3-15 years

Diet & Feeding

Like most plants, the Rio Grande Copper Lily creates its own food through photosynthesis using sunlight, water, and atmospheric carbon dioxide.

Primary Foods

  • Sunlight
  • Water
  • Soil nutrients
  • Carbon dioxide

Ecological connections

mutualism

Western Honey Bee

Apis mellifera

Pollinates the flowers while foraging for nectar

mutualism

Cloudless Sulphur

Phoebis sennae

Visits the blooms for nectar, assisting in pollination

eaten by

Feral Pig

Sus scrofa

May dig up and consume the bulbs despite their toxicity

Traits

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Also known as

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Safety

Danger

1/5 ยท Very low

No special safety notes yet.

Frequently Asked Questions

How to identify Rio Grande Copper Lily?

The easiest way to identify Rio Grande Copper Lily is to use the Snappit nature identifier app.

How long is Rio Grande Copper Lily?

10-25 cm

How long does Rio Grande Copper Lily live?

3-15 years

What does Rio Grande Copper Lily eat?

Like most plants, the Rio Grande Copper Lily creates its own food through photosynthesis using sunlight, water, and atmospheric carbon dioxide.

Where is Rio Grande Copper Lily usually found?

Found primarily in open, sun-drenched habitats such as grasslands, pastures, and disturbed roadsides, thriving in well-draining soils that experience periodic heavy rainfall.

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