骨碎補屬多年生草本，廣泛分佈於南亞至東亞的亞熱帶及熱帶氣候區，匍匐生長於岩石或樹幹上。根莖匍匐狀，於附著面有不定根藉以攀爬，外表附生銀白色的鱗片。葉長10~15㎝，葉片三角或五角形，三至四回羽狀複葉；小羽片披針形或長卵形。孢子葉的葉表於孢子囊著生處有凹痕，孢子囊有一杯狀孢膜包覆。冬季乾燥期或有落葉現象。

A perennial herb in the genus Davallia, widely distributed in subtropical and tropical regions from South Asia to East Asia, creeping on rocks or tree trunks. Rhizomes decumbent and climbing by adventitious roots, coated with silvery white scales. Fronds 10-15 cm long, triangular or pentagonal, tri- or quad-pinnately compound; small pinnae lanceolate or long ovate. Sori embedded in a dent on the surface of fertile fronds and covered with a cup-shaped indusium. Fronds exfoliate occasionally during dry winter.

於半日照溫暖環境可生長良好，可繫綁附樹栽培或使用排水良好介質種植。久旱會脫落葉片以休眠；空氣濕度高時生長較為快速。於低溫期澆水量要控制；其餘季節澆水量須充足，植株會較繁茂。以分株法繁殖。

The plant grows well in a warm environment with partial sun and can be grown as an epiphyte on trees or in well-drained medium. It defoliates and goes dormancy after prolonged drought and thrives faster in high humidity. Cut water use in cold seasons and increase watering in other seasons to promote the growth. Propagated from ramets.

走莖末端被覆銀白色毛絨，形似兔腳而有"兔腳"蕨的商品名稱。葉片細緻，可以單盆欣賞或作為組合盆栽材料；也可使用吊盆種植或直接繫綁於樹幹上，欣賞自然野趣。

It’s known as "rabbit's foot" fern in the market because the silvery white villi at the end of stolons look like a rabbit's foot. With delicate fronds, it can be appreciated in a single pot, a mixed planter and a hanging basket, or fixed directly on a tree trunk to display the feel of wilderness.