Question: What type of category does Plantago and Matteuccia have in common?

full_context: Document 1: Plantago princeps: Plantago princeps is a rare species of flowering plant in the plantain family known by the common name ale. It is endemic to Hawaii, where it is known from the islands of Hawaii, Kauai, Oahu, Molokai, and Maui. Like other Hawaiian "Plantago", it is known as kuahiwi laukahi, or laukahi kuahiwi. It is a federally listed endangered species of the United States.
Document 2: Microlepia strigosa: Microlepia strigosa, known as hay-scented fern, lace fern, rigid lace fern and palapalai in Hawaiian, is a fern indigenous to the Hawaiian islands and is also native to other parts of the tropics and subtropics including India and Malaysia. This fern belongs to a group of about seventy "Microlepia" species in the bracken or hay-scented fern family (Dennstaedtiaceae). There are two indigenous species and a hybrid found in the main Hawaiian Islands. It is also known by the botanical names: "Davallia hirta", "Davallia setosa", "Davallia strigosa", "Dicksonia kaulfussiana", "Dicksonia strigosa", "Microlepia hirta", "Microlepia setosa", "Stenoloma tenuifolium", "Trichomanes strigosum". It has coarse, light to medium green fronds which can grow to more than 3 feet long.
Document 3: Plantago lanceolata: Plantago lanceolata is a species of flowering plant in the plantain family Plantaginaceae. It is known by the common names English plantain, narrowleaf plantain, ribwort plantain, ribleaf and lamb's tongue. It is a common weed of cultivated land.
Document 4: Plantago: Plantago is a genus of about 200 species of small, inconspicuous plants commonly called plantains or fleaworts. The common name plantain is shared with the unrelated cooking plantain, a kind of banana. Most are herbaceous plants, though a few are subshrubs growing to 60 cm tall.
Document 5: Adiantum: Adiantum , the walking fern or maidenhair fern, is a genus of about 250 species of ferns in the Vittarioideae subfamily of the family Pteridaceae, though some researchers place it in its own family, "Adiantaceae". The genus name comes from Greek, meaning "not wetting", referring to the fronds' ability to shed water without becoming wet.
Document 6: Matteuccia: Matteuccia is a genus of ferns with one species, Matteuccia struthiopteris (common names ostrich fern, fiddlehead fern or shuttlecock fern). It is a crown-forming, colony-forming plant, occurring in temperate regions of the Northern Hemisphere in central and northern Europe, northern Asia, and northern North America. The species epithet "struthiopteris" comes from Ancient Greek words, "struthio" meaning ostrich and "pterion" meaning wing.
Document 7: Dryopteris cristata: Dryopteris cristata is a species of fern native to wetlands throughout the Northern Hemisphere. It is known as crested wood fern or crested buckler-fern. This plant is a tetraploid species of hybrid origin, one parent being "Dryopteris ludoviciana" and the other being the unknown, apparently extinct species, dubbed "Dryopteris semicristata", which is also one of the presumed parents of "Dryopteris carthusiana". "D. cristata" in turn is one of the parents of "Dryopteris clintoniana", another fern of hybrid origin.
Document 8: Plantago hawaiensis: Plantago hawaiensis is a rare species of flowering plant in the plantain family known by the common name Hawaiian plantain. It is endemic to Hawaii, where it is known only from the island of Hawaii. It grows on the slopes of Mauna Loa and Hualalai. Like other Hawaiian "Plantago", it is known as kuahiwi laukahi. It is a federally listed endangered species of the United States.
Document 9: Polystichum proliferum: Polystichum proliferum, commonly known as mother shield fern is an Australian endemic fern. The genus name Polystichum is derived from Greek "poly" - many, and "stichos -" rows referring to the many rows of sori. The species name is derived from Latin, "Proli" – offspring and "fer -" bearing referring to the proliferous buds, a prominent feature of the species.
Document 10: Athyrium filix-femina: Athyrium filix-femina, the lady fern or common lady-fern, is a large, feathery species of fern native throughout most of the temperate Northern Hemisphere, where it is often abundant (one of the more common ferns) in damp, shady woodland environments and is often grown for decoration.
Document 11: Plantaginaceae: Plantaginaceae, the plantain family, is a family of flowering plants in the order Lamiales. The type genus is "Plantago" L..
Document 12: Dryopteris: Dryopteris , commonly called wood fern, male fern (referring in particular to "Dryopteris filix-mas"), or buckler fern, is a genus of about 250 species of ferns with distribution in Eastern Asia, the Americas, Europe, Africa, and the Pacific islands, with the highest species diversity in eastern Asia. Many of the species have stout, slowly creeping rootstocks that form a crown, with a vase-like ring of fronds. The sori are round, with a peltate indusium. The stipes have prominent scales.
Document 13: Adiantum aleuticum: Adiantum aleuticum, the western maidenhair fern or Aleutian maidenhair, is a species of fern in the genus "Adiantum", native mainly to western North America from the Aleutian Islands of Alaska, south to Chihuahua, and also locally in northeastern North America from Newfoundland south to Maryland.
Document 14: Plantago cordata: Plantago cordata is a species of flowering plant in the plantain family known by the common name heartleaf plantain. It is native to eastern North America, where it is distributed throughout eastern Canada and the eastern United States. Though it has a wide distribution, it is very localized, and populations have declined almost everywhere.
Document 15: Plantago rugelii: Plantago rugelii is a species of flowering plant in the plantain family, Plantaginaceae. It is native to North America, where it occurs in eastern Canada and the central and eastern United States. Its common names include American plantain, blackseed plantain, pale plantain, and Rugel's plantain. The generic name "Plantago" is from the Latin "planta" ("footprint") and the species name "rugelii" honors Ferdinand Ignatius Xavier Rugel (1806-1879), a German-born botanist and pharmacist.
ground_truth: genus