Wildflowers Active during the day

bird's-foot trefoil

Lotus corniculatus

iNaturalist Wikipedia

Often called 'eggs and bacon' for its red-streaked yellow petals, this resilient wildflower is a vital oasis for butterflies and bees. Its unique seed pods, shaped like a bird's foot, make it one of the easiest and most rewarding plants to identify in your backyard.

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Quick Identification

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Size

Stems typically reach 5–30 cm (2–12 inches) in height, sprawling outward to a width of 60 cm (24 inches).

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Colors

Bright yellow flowers often streaked with red or orange; clover-like green foliage.

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Key Features

Clusters of 2-7 yellow pea-like flowers
Seed pods arranged in a pattern resembling a bird's foot
Leaves have five leaflets, with three at the tip and two at the base
Low-growing, sprawling or decumbent growth habit

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 9 AM - 5 PM

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Season May-September

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Diet Produces its own energy through photosynthesis and utilizes nitrogen-fixing root nodules to thrive in nutrient-poor soils.

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Habitat Open grasslands, meadows, roadsides, suburban lawns, and coastal dunes.

Behavior

Bird's-foot trefoil is a hardy perennial plant that exhibits a fascinating growth habit designed for survival in high-traffic areas. While it appears to be a passive member of the meadow, it is highly interactive with its environment. It features a deep taproot and a symbiotic relationship with soil bacteria to fix nitrogen, effectively fertilizing the soil as it grows. At night or during heavy rain, the plant exhibits nyctinasty, where its petals and leaves close slightly to protect its delicate reproductive parts.

In the backyard ecosystem, this plant acts as a social cornerstone. It is a major nectar source for long-tongued bees and serves as the primary food plant for the caterpillars of the Common Blue butterfly. Its sprawling stems create a dense mat that provides cover for ground-dwelling insects and small invertebrates, making it a hotspot of activity for any ground-level camera setup.

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Camera Tips

To capture the life surrounding bird’s-foot trefoil, position your AI camera at an ultra-low angle, roughly 10–15 centimeters (4–6 inches) from the ground. Because this plant is a low-growing creeper, a standard tripod is usually too tall; instead, use a ground spike or a weighted beanbag to stabilize the camera. Focus on a vibrant cluster of yellow flowers to act as a natural 'stage' for the pollinators that will inevitably visit. If your camera has a macro mode or a close-focus setting, this is the perfect species to test it on, as the intricate red 'veins' on the yellow petals are a striking visual detail.

For a unique perspective, set your camera to time-lapse mode during the peak blooming months of June and July. Capturing one frame every 15 to 30 minutes over a week will reveal the plant's sprawling growth and the way the flowers follow the sun. This also allows you to see the nyctinastic movement as the blooms close up tight when the sun goes down. Ensure the area is well-lit, as the bright yellow petals can lose their detail in heavy shade, but be wary of the midday sun which can overexpose the vibrant colors—early morning 'golden hour' light is best.

If you are looking to record butterfly activity, especially the Common Blue, place your camera near a patch of bird's-foot trefoil on a calm, sunny day with temperatures above 15°C (60°F). Use a high-sensitivity motion trigger or a short-interval photo burst. The plant's nectar is highly attractive to bees and butterflies, ensuring frequent 'visitors' to your frame. In late summer, keep the camera in place to document the transition from flowers to the namesake 'bird's foot' seed pods, which are dark and claw-like, providing a completely different aesthetic for your wildlife collection.

Similar Species

Species that look similar or are commonly confused with bird's-foot trefoil.

Black Medic

Black medic has much smaller, tightly packed spherical flower heads and lacks the red-orange streaks often seen on trefoil.

Greater Bird's-foot Trefoil

This relative is taller, has hollow stems, and prefers much dampener, marshy habitats compared to the common variety.

Common Gorse

While it has similar yellow pea-like flowers, gorse is a large, woody shrub covered in sharp spines, whereas trefoil is a low-growing herb.

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Frequently Asked Questions

As a plant, bird's-foot trefoil is most 'active' during daylight hours when it opens its flowers for pollination and engages in photosynthesis. You will see the most insect activity on the plant between 10 AM and 4 PM on sunny days.

Bird's-foot trefoil loves sunny spots and well-drained soil. You can attract it by reducing mowing frequency in a section of your lawn or by planting native wildflower seed mixes that include Lotus corniculatus. It thrives even in poor, sandy soil where other plants struggle.

Bird's-foot trefoil produces its own food through photosynthesis using sunlight, water, and carbon dioxide. Interestingly, it also 'feeds' the soil by taking nitrogen from the air and turning it into a form that plants can use, thanks to special bacteria in its roots.

Yes, they are very common in suburban areas, particularly in lawns that aren't heavily treated with herbicides, as well as on grassy verges, parks, and abandoned lots. Their ability to survive being stepped on makes them a suburban survivor.

While both have yellow flowers, bird's-foot trefoil has larger, pea-like flowers in small clusters, whereas Black Medic has tiny, round, globe-like flower heads. Additionally, trefoil seed pods look like a bird's foot, while Black Medic pods are small, black, and coiled.

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