Living BeingsCompare species
Common Bracken
Pteridium aquilinum
Tiger
Panthera tigris
Evidence from the profiles
Compare their characteristics
| Trait | Common Bracken | Tiger |
|---|---|---|
| Nutrition | Data unavailable | Carnivorous Source ↗ |
| Social organization | Not applicable | Generally solitary Source ↗ |
| Physical traits | Mature fronds have a broad, roughly triangular outline and are divided repeatedly into smaller segments. Upright stalks arise from underground rhizomes. Spore-producing structures occur along the margins of fertile fronds; a single visible frond represents only part of the plant. | Dark stripes break up the tiger’s outline. Stripe patterns vary from one individual to another. |
| Habitat and range | Bracken occupies open woodland, clearings, rough grassland and disturbed sites. British ecological studies describe substantial frond cover where growing conditions and disturbance permit. Soil moisture, exposure and the below-ground system influence the structure of a stand. | Tigers live in varied habitats, including tropical forests, mangrove swamps and temperate forest. |
| Diet and nutrition | The green fronds obtain carbon through photosynthesis. Rhizomes store resources and supply emerging shoots, linking a new season's growth with reserves accumulated earlier. Bracken is not a flowering plant: its reproductive structures and seasonal resource stores have to be understood in the context of a fern life cycle. | Tigers mainly hunt large mammals, including deer and wild pigs. |
| Behavior and activity | Growth is expressed as repeated emergence of fronds from the rhizome system. Rapid canopy development changes the light reaching the ground. Underground growth can survive the loss of visible fronds and supply renewed growth after disturbance. | A tiger usually hunts by stalking its prey and attacking at close range. |
| Reproduction and life cycle | Spores develop into a small, separate gametophyte generation. Fertilization starts the new sporophyte that becomes the large fern. Vegetative spread through rhizomes also extends established stands, independently of establishment from spores. | Data unavailable |
| Geographic distribution | Kew's current Plants of the World Online treatment gives the accepted species a native range in Macaronesia, northern and northeastern tropical Africa, the Arabian Peninsula, and Europe eastward to Siberia and Iran. This is narrower than older statements that bracken is nearly worldwide. Occurrences assigned to other Pteridium species are not silently combined here, and this summary is not a specimen-level distribution map. | Data unavailable |
| Ecological role | Dense fronds and accumulated litter affect the establishment of neighboring vegetation. The British flora account identifies stored rhizome resources, rapid spring growth and canopy development as important components of competitive ability. Their effects vary with environment and management. | Data unavailable |
| Distinctive adaptations | Protected underground reserves support recovery after above-ground disturbance. Rhizome growth and seasonal frond production allow a stand to persist even when individual fronds are short-lived. The connection between stored reserves and new shoots is central to this growth strategy. | Data unavailable |
| Conservation | No global threat category is assigned in this profile. Local management often concerns the persistence and dominance of stands. Range and management records must be matched to the species concept used in the regional flora. | Data unavailable |
Classification
Shared ancestry
Closest shared taxon: Eukaryota.
Sources from both profiles
Common Bracken
- Pteridium aquilinum · NCBI Taxonomy ↗
- Pteridium aquilinum — Plants of the World Online, Royal Botanic Gardens, Kew ↗
- Pteridium aquilinum — USDA Forest Service, Fire Effects Information System ↗
- Pteridium aquilinum (L.) Kuhn — accepted species and distribution ↗
- Biological Flora of the British Isles: Pteridium aquilinum (L.) Kuhn ↗