It originated in the USA in 1909 as a cross between the oval kumquat F. margarita (Lour.) Swingle and citrange.
Has the same parentage as 'Telfair' and first spawned in Thomasville.
Due to the size of the fruits, which are edible, it is gaining popularity, it is the most fertile of the citrus quats.
The tree is very tall, upright, thorny, evergreen.
Leaves of different shapes, simple, mostly trifoliate, narrow, stiff, with a little winged petiole.
Fruits of the shape and size of a hen's egg (3-5 cm), sometimes spherical or flattened.
They appear at the end of long shoots in such numbers that the branches typically bend downward.
Yellow-orange carpels slightly wavy, very thin.
Flesh juicy, sour before fully ripe, sweet when ripe, edible, very juicy.
It has few seeds, only 2-6. It is extremely frost-resistant, when grown in open ground with suitable protection for cold locations down to -12°C, it can be grown in cold greenhouses.
In case of late frost damage, they grow a second time and set flowers. It is suitable as a rootstock for cold wintering and growing dwarf varieties.