# Trailing Rhatany (*krameria lanceolata*)

Trailing Rhatany (Krameria lanceolata) is a fascinating, low-profile perennial wildflower native to the sandy, rocky prairies and open woodlands of the southern United States and northern Mexico. Although it appears to be a typical, modest wildflower creeping along the ground, it possesses a secret survival strategy: it is a root hemiparasite. This means that while its grayish-green leaves produce energy through photosynthesis, its root system actively seeks out and attaches to nearby host plants to siphon off water and vital minerals. Despite its parasitic nature, Trailing Rhatany produces striking, orchid-like flowers in late spring and summer. These bright pink-to-purple blooms are not just beautiful; they have co-evolved with unique oil-collecting bees, offering lipids instead of nectar. This resilient plant is an exceptional example of ecological complexity, blending parasitism, photosynthesis, and specialized mutualism into a hardy organism.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 5
- **Habitat:** Found in dry, open habitats such as sandy or rocky prairies, desert grasslands, and limestone glades.

![Trailing Rhatany](https://inaturalist-open-data.s3.amazonaws.com/photos/7186793/medium.jpg)

Photo: Meghan Cassidy, CC BY-SA 4.0 · [iNaturalist](https://www.inaturalist.org/photos/7186793)

## Appearance

This plant is easily identified by its prostrate, trailing stems that spread up to 1 meter across the ground, covered in small, lance-shaped, grayish-green leaves with fine, silky hairs. The flowers, about 2 centimeters wide, feature five spreading, petal-like sepals of a rich purplish-pink color, surrounding smaller, modified petals. Following pollination, it develops distinctive round, woody fruit capsules covered in sharp, barbed spines and woolly hairs, which readily cling to animal fur.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Zygophyllales
- **Family:** Krameriaceae
- **Genus:** Krameria

## Interesting facts

- Its spiny fruit looks like a miniature medieval mace, designed perfectly to hitchhike on the fur of passing mammals.
- The flowers do not offer any nectar; instead, they produce specialized fatty oils that only a few highly evolved bee species can collect.
- Trailing Rhatany's roots contain high concentrations of tannins, historically used by Native Americans as an astringent and to treat wounds.

## Special abilities

- **Root Hemiparasitism:** The plant uses specialized root structures called haustoria to tap into the root systems of neighboring plants, stealing water and nutrients.
- **Lipid Reward Secretion:** Instead of nectar, its flowers produce specialized oils from glands called elaiophores to attract specific oil-collecting bee pollinators.
- **Barbed Seed Dispersal:** Its woody seed pods are densely covered in barbed spines that easily snag on passing animal fur, ensuring wide seed distribution.

## Measurements & details

- **Length:** 30-100 cm
- **Lifespan:** 3-15 years

## Diet & Feeding

As a photosynthetic hemiparasite, it generates its own energy from sunlight while absorbing water, nitrogen, and minerals directly from the roots of host plants.

- **Primary Foods:** Sunlight, Water, Soil Minerals, Host Plant Sap
- **Foraging Method:** Foraging

## Ecological connections

- **Mutualism:** Oil-collecting Bee (*Centris lanosa*) — Pollinates the flowers, collecting oils from the elaiophores to feed its larvae.
- **Parasite:** [Little Bluestem](https://www.snappit.app/explore/little-bluestem) (*Schizachyrium scoparium*) — Acts as a common host plant from which the rhatany steals water and minerals.
- **Parasite:** Side-oats Grama (*Bouteloua curtipendula*) — Another common herbaceous host plant targeted by its root connections.

## Safety

**Danger:** 1/5 · Very low

No special safety notes yet.

## Frequently Asked Questions

### How to identify Trailing Rhatany?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How long is Trailing Rhatany?

30-100 cm

### How long does Trailing Rhatany live?

3-15 years

### What does Trailing Rhatany eat?

As a photosynthetic hemiparasite, it generates its own energy from sunlight while absorbing water, nitrogen, and minerals directly from the roots of host plants.

### Where is Trailing Rhatany usually found?

Found in dry, open habitats such as sandy or rocky prairies, desert grasslands, and limestone glades.

### How does Trailing Rhatany hunt?

Foraging

## Where to spot

- [Darlington Agency](https://www.snappit.app/guides/places/darlington-agency) — Oklahoma, US · Historic District
- [Lyndon B. Johnson National Grassland](https://www.snappit.app/guides/places/lyndon-b-johnson-national-grassland) — Texas, US · National Park
- [McClellan Creek National Grassland](https://www.snappit.app/guides/places/mcclellan-creek-national-grassland) — Texas, US · National Park

[View all places to see Trailing Rhatany](https://www.snappit.app/guides/where-to-see/trailing-rhatany)

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Trailing Rhatany: Facts & Places to See — Snappit](https://www.snappit.app/explore/trailing-rhatany)