Question: Which of the following has a name that translates as heart and seed: Cardiospermum or Echinocereus?

Context paragraphs:
Cardiospermum grandiflorum: Cardiospermum grandiflorum, commonly known as balloon vine, heart pea or heart seed, is a species of climbing plant native to eastern Argentina and Brazil.  It was described by Olof Swartz and is in the family Sapindaceae.  The species can grow over 10 m long and it has small white flowers.

Ot serdtsa k nebu: Ot Serdtsa k Nebu (От Сердца к Небу) is the fourth full-length album by the Russian folk metal band Arkona.  It was released on October 31, 2007 through Sound Age Production and later through Napalm Records.  The name translates to "From the Heart to the Sky".

Róisín Dubh (music venue): The Róisín Dubh is an established live music venue in Galway, Ireland.  It has hosted events such as the IMRO Showcase Tour and the 2fm 2moro 2our.  The name translates from the Irish language as the "little black rose".  According to Una Mullally in the "Sunday Tribune", the venue is "the heart of live music in the city".

Dictyocaryum: Dictyocaryum is a monoecious genus of flowering plant in the palm family found in South America which is closely related to the "Iriartea" genus; they are commonly called araque or palma real.  As many as eleven species have been described but this number is reduced to three in most current accounts.  The genus name translates from two Greek words meaning "net" and "nut", describing the thick network of raphe fibers around the seed.

Echinocereus: Echinocereus is a genus of ribbed, usually small to medium-sized cylindrical cacti, comprising about 70 species native to the southern United States and Mexico in very sunny rocky places.  Usually the flowers are large and the fruit edible.

Shingyōtō-ryū: Shingyōtō-ryū (心形刀流 ) is a Japanese koryū swordsmanship style that was founded in 1682 by Iba Josuiken Hideaki (伊庭是水軒秀明 ) .  The name roughly translates as "mind shape/form sword school".  The style places a high emphasis on swordsmanship philosophy, mainly "to-ho-no-sho-shin" or "the heart of the sword".

List of rivers of Sri Lanka: The following table lists most rivers of Sri Lanka.  Since Sri Lanka is a trilingual country, some rivers may have a Sinhala name (i.e. Kalu Ganga), while other have an English name (i.e. Kelani River).  In the Sinhala language, Ganga (ගඟ) translates to "river", where as Oya (ඔය) translates to "smaller river".  At 335 km , the Mahaweli River is the longest river in the island, and has drainage basin covering more than one-fifth of the island.

Sarcopteryx stipata: Sarcopteryx stipata, known as the steelwood is a rainforest tree of eastern Australia.  Occurring from the Bulga Plateau and Comboyne Plateau north west of Taree, New South Wales.  As far north as Fraser Island off the coast of south eastern Queensland.  The habitat is sub tropical rainforest.  Though it sometimes occurs in the warm temperate rainforests on poorer soils.  A member of the soap berry family.  The generic name "Sarcopteryx" translates to "fleshy wing", as the fruit can be wing shaped.  The seed is surrounded in fleshy yellow aril.  "Stipata" means "surrounded".  Named "steelwood" as the timber is very tough, hard and heavy, with an interlocked grain.

Cardiospermum: Cardiospermum is a genus of approximately 14 species in the soapberry family, Sapindaceae, which are native to the American, Indian, and African tropics.  The genus name is derived from the Greek words καρδία, meaning "heart," and σπέρμα, meaning "seed."  Common names of the members of this genus include Balloon Vine, Love in a Puff, Heartseed, and Heartseed Vine.  These plants are classified as invasive species in parts of the Southern United States and South Africa.

God Seed: God Seed was a Norwegian black metal band based in Bergen, Norway.  Former Gorgoroth members Gaahl and King ov Hell adopted the name in March 2009 following the ending of the Gorgoroth name dispute.  After performing a few gigs as God Seed, vocalist Gaahl left the band in July 2009 and it was put on hold.  King finished the music for God Seed's first album, with vocalist Shagrath, and released it under the name Ov Hell.  Gaahl re-joined God Seed in 2012.  In January that year they released the live album "Live at Wacken", and in October they released their first studio album, "I Begin".

Supporting paragraphs: Cardiospermum Echinocereus
Answer: Cardiospermum