ExplorePlants

Woolly Beachheather

hudsonia tomentosa

Woolly Beachheather (Hudsonia tomentosa) is a remarkable, resilient dwarf shrub that thrives in some of North America's most inhospitable environments: shifting sand dunes and barren pine plains. Belonging to the rockrose family (Cistaceae), this low-lying perennial forms expansive, moss-like mats that act as vital ecological anchors, binding loose sands with their extensive root networks and helping to stabilize fragile dune ecosystems against wind erosion. Despite its desert-like habitat, the plant remains evergreen, relying on specialized adaptations to conserve precious moisture. During most of the year, Woolly Beachheather blends quietly into the sandy landscape with its soft, silvery-gray foliage. However, in late spring, it undergoes a stunning transformation. The mats burst into a spectacular display of tiny, vibrant yellow flowers, creating a vivid contrast against the pale sands. These brief but beautiful blooms attract a variety of native pollinators, making this hardy pioneer species not only a crucial physical stabilizer of coastal and lakeside sands but also a vital resource for local biodiversity. To easily track and identify Woolly Beachheather on your next adventure, download the Snappit app.

Habitat: Found in coastal and inland sand dunes, sandy beaches, and pine barrens, where soils are nutrient-poor and highly draining.

Appearance

Woolly Beachheather is a low-growing, highly branched evergreen subshrub forming dense, carpet-like mats up to 30 cm tall. Its tiny, scale-like leaves are needle-like, overlapping closely along the stems, and are heavily covered in a dense, grayish-white coat of woolly hairs (tomentum) that give the entire plant a distinct dusty-green or silvery-gray appearance. In late spring to early summer, the mats transform as they become blanketed in small, bright yellow, five-petaled flowers that open only in direct sunlight.

KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderMalvalesFamilyCistaceaeGenusHudsonia
Woolly Beachheather
Woolly Beachheather

Category

Plants

Rarity

Common

Danger

1/5 ยท Very low

Snaps

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Interesting facts

Despite its name and resemblance to true heathers, Woolly Beachheather actually belongs to the rockrose family (Cistaceae).

Its woolly hairs not only trap moisture but also act as natural sunscreen, reflecting harsh sunlight off the sand.

The plant's flowers open for only a few hours on sunny days, relying on a rapid pollination window.

Special abilities

Ability

Tomentose Moisture Barrier

The dense, woolly hairs covering the leaves trap a layer of humid air close to the plant's surface, drastically reducing water loss from transpiration.

Ability

Sand-Binding Root System

Its extensive, fibrous root network anchors the plant in shifting sands, helping to stabilize dune structures while securing moisture from deep below.

Ability

Solar-Triggered Blooming

The small yellow flowers open only under bright, direct sunlight to maximize pollination efficiency, closing rapidly on cloudy days or during the night.

Measurements & details

Length
10-30 cm
Lifespan
10-30 years

Diet & Feeding

As an autotrophic plant, Woolly Beachheather produces its own organic compounds through photosynthesis, utilizing sunlight, carbon dioxide, and water.

Primary Foods

  • Sunlight
  • Carbon dioxide
  • Water
  • Soil nutrients

Ecological connections

mutualism

American Beachgrass

Ammophila breviligulata

Co-occurs in sand dune habitats, where both species work together to stabilize shifting sands and build dune structures.

mutualism

Eastern Carpenter Bee

Xylocopa virginica

Visits the small yellow flowers to forage for pollen and nectar, facilitating pollination for the beachheather.

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 Woolly Beachheather?

The easiest way to identify Woolly Beachheather is to use the Snappit nature identifier app.

How long is Woolly Beachheather?

10-30 cm

How long does Woolly Beachheather live?

10-30 years

What does Woolly Beachheather eat?

As an autotrophic plant, Woolly Beachheather produces its own organic compounds through photosynthesis, utilizing sunlight, carbon dioxide, and water.

Where is Woolly Beachheather usually found?

Found in coastal and inland sand dunes, sandy beaches, and pine barrens, where soils are nutrient-poor and highly draining.

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