# Hollowroot (*Corydalis cava*) Hollowroot is a lovely plant with delicate, fern-like leaves and pretty yellow flowers. It often grows in shady forests and can be a fun surprise to find while exploring nature! - **Category:** [Plants](https://www.snappit.app/explore/categories/plant) - **Rarity:** Common - **Danger:** 2/5 · Low - **Habitat:** Forests ![Hollowroot](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Corydalis_cava.jpg&width=800) Photo: Prazak, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Corydalis_cava.jpg) ## Appearance The Hollowroot has delicate, deeply-lobed blue-green leaves and clusters of unique tubular flowers. These flowers often display shades of purple, pink, or white, emerging early from the forest floor before trees fully leaf out. ## Taxonomy - **Kingdom:** Plantae - **Phylum:** Tracheophyta - **Class:** Magnoliopsida - **Order:** Ranunculales - **Family:** Papaveraceae - **Genus:** Corydalis ## Interesting facts - Hollowroot is a 'spring ephemeral,' quickly growing and blooming before tree leaves block the sun! - Its name "Corydalis" comes from Greek, meaning "crested lark," for its bird-like flower shape! - The "hollow" in Hollowroot describes its unique, often hollow, underground storage tuber. - When Hollowroot blooms, it signals the very beginning of spring waking up in the forest! ## Special abilities - **Underground Powerhouse:** Hollowroot stores energy in a hollow underground tuber, allowing it to sprout quickly in early spring before other plants wake up. - **Ant Snack Delivery:** Hollowroot produces seeds with a fatty attachment called an elaiosome, attracting ants to carry and disperse them far away. - **Early Bird Bloomer:** Hollowroot blooms very early in spring, finishing its life cycle before tree canopies fully close, maximizing sunlight. ## Measurements & details - **Height:** 10-30 cm - **Spread:** 5-15 cm - **Flower Size:** 1-2.5 cm - **Bloom Season:** Early spring (February-April) - **Edible:** No - **Toxicity:** Mild - **Lifecycle:** Perennial - **Pollination Method:** Insect ## Ecological connections - **Pollinates:** Buff-tailed Bumblebee (*Bombus terrestris*) — Collects nectar and pollen from flowers. - **Pollinates:** Western Honey Bee (*Apis mellifera*) — Visits flowers for nectar and pollen. - **Depends on:** Red Wood Ant (*Formica rufa*) — Carries seeds away for the fatty elaiosome. - **Eaten by:** [Black Slug](https://www.snappit.app/explore/black-slug) (*Arion ater*) — Sometimes grazes on leaves and stems. ## Traits - [Deciduous](https://www.snappit.app/explore/traits/deciduous): Deciduous plants periodically shed all their leaves, typically during autumn or dry seasons. - [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle. - [Ornamental](https://www.snappit.app/explore/traits/ornamental): Ornamental plants are cultivated primarily for their aesthetic appeal, enhancing landscapes and gardens with their attractive foliage, flowers, or form. - [Shade Tolerant](https://www.snappit.app/explore/traits/shade-tolerant): Shade tolerant plants are adapted to grow and thrive in areas with low light levels, requiring less direct sunlight. - [Spring Blooming](https://www.snappit.app/explore/traits/spring-blooming): Spring blooming plants produce their flowers during the spring season, often signifying the end of winter and the start of new growth. - [Medicinal](https://www.snappit.app/explore/traits/medicinal): Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health. - [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms. - [Forest](https://www.snappit.app/explore/traits/forest): Forest habitats are terrestrial environments dominated by dense tree cover, supporting a high diversity of plant and animal life. ## Collections - [Plants](https://www.snappit.app/explore/collections/plants) ## Safety **Danger:** 2/5 · Low Always look but don't touch plants you don't know, as some can be harmful. ## Frequently Asked Questions ### How to identify Hollowroot? 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 tall is Hollowroot? 10-30 cm ### How wide does Hollowroot spread? 5-15 cm ### How big are the flowers on Hollowroot? 1-2.5 cm ### When does Hollowroot bloom? Early spring (February-April) ### Is Hollowroot edible? No ### Is Hollowroot toxic? Mild ### What is Hollowroot's lifecycle? Perennial ## Where to spot - [Naturpark Mecklenburgische Schweiz und Kummerower See](https://www.snappit.app/guides/places/mecklenburgische-schweiz-kummerower-see-nature-park) — Mecklenburg-Vorpommern, DE · Park - [Naturpark Westensee](https://www.snappit.app/guides/places/naturpark-westensee) — Schleswig-Holstein, DE · Park - [Naturpark Unteres Saaletal](https://www.snappit.app/guides/places/naturpark-unteres-saaletal) — Sachsen-Anhalt, DE · Park - [Saxon Switzerland National Park](https://www.snappit.app/guides/places/saxon-switzerland-national-park) — Sachsen, DE · Park - [Schlossparks Augustusburg & Falkenlust (Brühl)](https://www.snappit.app/guides/places/augustusburg-falkenlust-palace-parks-bruehl) — Nordrhein-Westfalen, DE · Park - [Grüneburgpark, Frankfurt am Main](https://www.snappit.app/guides/places/grueneburgpark-frankfurt-am-main) — Hessen, DE · Park [View all places to see Hollowroot](https://www.snappit.app/guides/where-to-see/hollowroot) ## 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*) --- Source: [Hollowroot: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/hollowroot)